Smallville :

As a massive tornado approaches the unsuspecting Smallville, Clark finds a missing piece of the spaceship that carried him to Earth. The part activates the disabled craft, giving Clark the first clue as to where he came from.

Meanwhile, Lex experiences two disturbing events: His father, Lionel closes the plant and orders Lex to return to Metropolis, and the deceitful reporter Lex hired to spy on the Kents discovers Clark's superhuman abilities and the spaceship hidden in the storm cellar. Members of the rock band Remy Zero perform their hit single 'Save Me', the "Smallville" theme song, at the Smallville High School formal dance. As Lana drives home after dropping Whitney off at the bus station, three tornadoes touch down, forcing her off the road. When the news is announced at the school dance, Clark rushes off to make sure Lana is okay. Just as Lana is pulled into a tornado, Clark arrives and speeds in after her.