It's A Bad, Bad, Bad, Bad World
S6, E22: Chris and Leo are sent to a parallel universe where evil prevails. Phoebe and Paige try to rescue them, while Piper gives birth to baby Chris.

S6, E22: Chris and Leo are sent to a parallel universe where evil prevails. Phoebe and Paige try to rescue them, while Piper gives birth to baby Chris.