After a nightmare, Clark goes to the cave to confront his father Jor-El. Jor-El warns that the crystals have fallen into human hands and have triggered a new meteor shower…

Martha catches a lungful of kryptonite-irradiated spores and a weakened Clark is her only hope for survival.

Sam and Dean discover a doctor who, back in 1816, became obsessed with finding the secret of eternal life by taking people’s vital organs. Meanwhile, Bobby finds Bela and Dean…