S5, E1: In the laboratory of Dr. Geiger (Peter Jurasik), his lab assistant (Robert Floyd) is preparing for a mysterious experiment. A laser gun fires at him and he vanishes. At the same time, Rembrandt (Cleavant Derricks), Maggie (Kari Wuhrer), Quinn and Colin are getting ready to slide out of a dangerous situation, but something goes wrong in the vortex...