Jonathan Kent is being stalked by a man with whom he fought alongside during the Korean War. As Clark, Lana and T.J. come to Smallville for a visit, Mr. Kent is lured to the Smallville hospital and kidnapped by the man.

A beautiful vampire-like creature seeks to drain Superboy of his life force and seduces TJ as part of her plot.

Luthor steals a powerful weapon developed by the army and prepares to sell it to weapon dealers. Later, while Luthor is working in the Shuster laboratory, he causes an explosion, and Superboy saves him by blowing the chemical fumes out of the building.

Lex Luthor returns, kidnaps Lana, forces her to marry him, and assumes the identity of a doctor that created a weapon that could paralyze Superboy forever.

Superboy and Lana get caught in the middle of a battle between two vampires.

Trapped on a deserted island after Andy's motorboat sinks, Clark gets stripped of his powers by an alien who also kidnaps Lana.

Superboy battles to free Lana from Bizarro while Prof. Peterson uses his duplicating ray on kryptonite to create Bizarro Kryptonite with the hope that it will end the Bizarro menace.

Superboy must stop a robot that has reprogrammed itself to avenge the death of its creator by killing both Andy and his father.

A crazed genius seeks revenge on Superboy for being imprisoned after he develops a suit that steals away the superhero's powers.

While spending the weekend at an Andy's Uncle's old mansion, Andy, Lana and Clark get pulled into a vortex leading to a ghost world.

Johnny Avonasac, a tennis player, finds a mysterious potion left behind by his dead brother that transforms into Johnny Casanova, an overweight slob who also happens to be a magnet for women, including Lana.

Superboy's life is in peril when an alien creature attaches itself to his body, causing him horrific nightmares in which he battles his alter ego of Clark Kent.

Its annual review time and Clark Kent has to recount for his boss a typical day in his life. Carefully working around the excitement he leads as Superboy, Clark paints himself as a boring, all American boy.

Superboy is transported to an alternate-reality jungle and turned into a child, where he must fight for his life and avoid the evil alternate version of Lex Luthor.

Barely escaping the jungle, Superboy is transported to another alternate reality where the demented Dr. Winger admits to trapping him. Now Superboy will have to travel back through realities in order to save himself and defeat Lex Luthor.

A wave of violence has broken out within the city, sending Superboy into tension-filled investigation. Little does he know he will soon be accused of murder.

Lana's life is in peril as Adam blackmails Tommy into creating a weapon to kill Superboy.

A prison psychiatrist helps Lex Luthor and Metallo escape, all three quickly turning their attention to stopping Superboy once and for all.

Superboy continues to battle the newly formed threesome of Lex Luthor, Metallo and Dr. Odessa Vexman. As their destructive potential continues to rise, Superboy must stop them before it's too late.