Welcome back to Rewatching Smallville, my weekly dive into the iconic series that explores Clark Kent’s journey before becoming Superman. Whether you’re a long-time fan or new to the show, you’re invited to join in each Tuesday as I revisit episodes and share my thoughts and observations. Be sure to share your own memories and theories in the comments below!

Some television episodes are memorable for their plot twists. Others for their spectacular action sequences. But Smallville‘s “Legacy,” the seventeenth episode of Season 3, holds a different kind of weight entirely—it’s an episode that manages to be both a pivotal moment in Clark Kent’s journey and a poignant farewell from the man who first taught us a man could fly.

When Fathers Fail Their Sons

At its core, “Legacy” is about the messy, complicated business of being a father—and having one. The episode opens with Jonathan Kent literally falling off the barn roof (because apparently even super-dads aren’t immune to workplace accidents), saved only by Clark’s super-speed intervention. It’s a moment that sets the tone perfectly: fathers are fallible, sons must sometimes save them, and the whole thing is more complicated than anyone wants to admit.

What follows is perhaps one of Smallville‘s most emotionally brutal episodes for the Kent family dynamic. Jonathan, still reeling from the effects of Jor-El’s mysterious “deal” struck back in “Exile,” begins acting erratically—irritable, distant, and most shockingly, calling Clark by his Kryptonian name, Kal-El. For a show that built its foundation on the unshakeable bond between Clark and his adoptive father, watching Jonathan emotionally withdraw feels like watching the series’ moral center crack.

John Schneider delivers one of his finest performances as Jonathan grapples with guilt over his perceived failures as a father. His confession at his parents’ grave—admitting he feels responsible for forcing Clark to run away—is gut-wrenching precisely because it’s so human. Here’s a man who’s spent years being the moral compass for a future Superman, suddenly drowning in self-doubt about whether he’s been enough.

The episode brilliantly parallels Jonathan’s struggle with Clark’s own father-son conflict with Jor-El. While Jonathan questions his worthiness as Clark’s earthly father, the biological father manipulates from beyond through the mysterious octagonal key. It’s a three-way tug-of-war for Clark’s loyalty and identity, with the young man caught in the middle trying to honor both fathers while staying true to himself.

The Luthor Family Business: Mutual Destruction

Meanwhile, over at the mansion, the Luthors are doing what they do best—trying to destroy each other with style. Lionel’s desperation reaches new heights as his liver disease progresses, leading him to make increasingly reckless moves to unlock the secrets of the Kawatche Caves. His confrontation with Dr. Swann is particularly compelling, as two brilliant men dance around each other with half-truths and hidden agendas.

John Glover’s Lionel has always been Smallville‘s secret weapon, but “Legacy” showcases him at his most dangerous—not because he’s physically threatening, but because he’s a dying man with nothing left to lose. His manipulation of the situation, from impersonating FBI agents to physically fighting Jonathan for the key, shows a man whose desperation has stripped away his usual veneer of civility.

The episode also deepens the tragic trajectory of Lex’s character. Michael Rosenbaum’s performance subtly shows us a young man still trying to be better than his father, cooperating with the FBI to bring Lionel down while simultaneously protecting the Kents. It’s classic Lex—trying to do the right thing while employing morally questionable methods. The wire he wears becomes a perfect metaphor for how he’s caught between worlds, never quite belonging to either the side of justice or corruption.

Christopher Reeve’s Final Flight

But what elevates “Legacy” from a strong episode to something truly special is Christopher Reeve’s final performance as Dr. Virgil Swann. Knowing this was his last acting role before his death in October 2004 adds an almost unbearable poignancy to every scene.

Reeve’s Swann serves as more than just a plot device—he’s the wise mentor figure who bridges Clark’s Kryptonian heritage with his human upbringing. His conversations with Clark about destiny, choice, and what it means to be human carry extra weight when delivered by the man who first embodied Superman on screen. When he tells Clark, “Humanity is not only about biology,” it’s not just good writing—it’s Christopher Reeve speaking from experience about what truly makes someone heroic.

The behind-the-scenes stories make this performance even more remarkable. Despite being limited to just a few hours of filming due to his condition, Reeve insisted on staying on set for six to seven hours, so committed was he to getting the scenes right. His nurse reportedly threatened to call the police if he didn’t leave—a testament to Reeve’s dedication to the role and the character that defined his career.

Perhaps most touching is Reeve’s personal endorsement of Tom Welling, telling him, “I’m glad you’re the next Superman.” It’s a passing of the torch that feels both scripted and deeply authentic, a moment where the real Christopher Reeve blessed his fictional successor.

Season 3’s Darkest Hour

Within the broader context of Smallville‘s third season, “Legacy” represents the series at its most emotionally complex. Season 3 had already put Clark through the wringer—from his red kryptonite-fueled exile in Metropolis to his struggles with increasing powers and responsibilities. “Legacy” serves as the emotional nadir where every relationship Clark values seems to be fracturing simultaneously.

His adoptive father is pulling away, his biological father is manipulating him, his best friend Lex is lying to him (even for good reasons), and Lana is rejecting his romantic advances. For a character who would grow up to be the ultimate symbol of hope, Clark Kent has rarely felt more isolated and uncertain about his future.

The episode’s treatment of Clark and Lana’s relationship is particularly well-handled. Rather than falling into typical teen drama tropes, Lana’s rejection of Clark’s kiss feels mature and realistic. Kristin Kreuk delivers her explanation with genuine emotion—she’s not rejecting Clark out of spite, but out of self-preservation and growth. Her line about measuring Clark “by all your experiences with him, not just his most recent gesture” shows remarkable emotional intelligence for a teenager.

The Key to Everything

The octagonal key serves as both MacGuffin and metaphor throughout “Legacy.” Physically, it’s the object everyone wants—Lionel for power, Jonathan for protection, Clark for answers. But symbolically, it represents the different legacies pulling at Clark: his Kryptonian heritage (Jor-El), his human upbringing (Jonathan), and his future destiny (Swann’s guidance).

The key’s final disappearance into the cave wall, only to end up in Dr. Swann’s possession, is a perfect example of Smallville‘s ability to advance plot while deepening mythology. It sets up future storylines while resolving immediate conflicts, and the image of the key floating into the ancient cave wall feels appropriately otherworldly.

Legacy’s Legacy

Watching “Legacy” today, knowing what we know about both Christopher Reeve’s passing and the eventual trajectory of Smallville‘s ten-season run, the episode feels like a hinge point—not just for the series, but for the Superman mythology itself. It’s where the classic Superman (Reeve) literally and figuratively hands over the keys to the future Superman (Welling).

The episode succeeds because it never feels like stunt casting or cheap nostalgia. Reeve’s scenes are integral to both plot and theme, and his performance carries the gravitas of someone who understood the weight of the Superman legacy better than anyone. When Dr. Swann tells Clark about the struggle between fathers and sons being “as old as the human race,” it resonates because it’s being delivered by someone who spent his life embodying the best of humanity.

Critics at the time praised the episode’s mythology-building and emotional depth, even as it faced tough competition from shows like American Idol in the ratings. Contemporary reviews highlighted the “brilliant mythology fueled tale” and praised both Reeve and John Glover’s performances. While it may have had lower overnight ratings than some Season 3 episodes, “Legacy” has endured as a fan favorite, regularly cited as one of the season’s strongest installments.

The Measure of a Man

“Legacy” ultimately argues that we’re defined not by our origins, but by our choices—and by the guidance of those who believe in us. Jonathan’s crisis of faith as a father mirrors Clark’s uncertainty about his destiny, while Lionel’s desperation to extend his legacy through supernatural means contrasts sharply with Dr. Swann’s quiet mentorship.

The episode’s final image—Dr. Swann holding the octagonal key while Clark remains unaware—suggests that sometimes the most important legacies are the ones we don’t immediately recognize. Swann’s temporary guardianship of Clark’s Kryptonian heritage allows Clark to focus on his human relationships, particularly healing his bond with Jonathan.

In the end, “Legacy” works because it understands that the most powerful legacies aren’t about grand destinies or alien artifacts—they’re about the quiet moments when someone believes in you enough to help you become who you’re meant to be. Christopher Reeve’s final performance reminds us that heroes aren’t born from powers or prophecies, but from the choice to use whatever gifts we have in service of others.

For Smallville, “Legacy” represents the series firing on all cylinders—complex character development, advancing mythology, emotional honesty, and genuine stakes. For Superman’s larger mythology, it’s a bridge between past and future, handled with the respect and gravity such a transition deserves.

And for Christopher Reeve? It’s a final gift to the character and fans who loved him—proving one last time that a man can inspire others to fly, even when he can no longer do so himself.