Danny returns; Jodie cares for Wendy; the real Burt is home.

Burt and Saul time-travel; Billy meets a lonely divorcee.

Billy is saved; Alice leaves; Burt beams away; Benson leaves.

The alien Burt woos Mary; the Tates set out to rescue Billy.

Aliens clone Burt; Jodie sees his baby; Billy must be saved.

The exorcism continues; Jessica chooses; aliens take Burt.

Benson visits Billy at the cult temple; Tim tries exorcism.

Tim returns; Danny seeks Elaine's killers; Burt sees a UFO.

Jessica is torn; Mary forgives Burt; the baby is possessed.

Burt confronts Sally; Danny meets Alice; Chester returns.