She also finds a new boyfriend in Oliver Queen (Justin Hartley), a tycoon who moves from Star City to Metropolis and revives a boarding-school rivalry with Lex. But Queen is also a superhero, the Green Arrow, and he's out to thwart Lex's project called 33.1, which runs tests on meteor-powered humans. And in an awesome episode called "Justice," the Green Arrow gathers his team--Bart Allen (Kyle Gallner), a.k.a. Impulse (a change after he was first called the Flash); Arthur "AC" Curry (Alan Ritchson), a.k.a. Aquaman; and Victor Stone (Lee Thompson Young), a.k.a. Cyborg (who had all appeared in the series before)--with Clark to shut down Lex. Yet another hero from the comic books--an interplanetary detective (Phil Morris)--helps Clark fight rogue Kryptonians. It all ends in a slam-bang finale with a number of surprises. Even though the Lana drama went on too long, Green Arrow and some choice episodes stuff made this one of Smallville's best seasons. Guest stars include Tori Spelling as a nosy gossip reporter and Lynda "Wonder Woman" Carter as Chloe's mom. --David Horiuchi