An accidental overdose of gamma radiation causes a mutation in scientist David Banner's DNA: now whenever he becomes angry, he metamorphoses into a seven-foot-tall, 330-pound, mindless muscular green creature.
Followup movie to the TV series about 250,000 aliens, or "newcomers" as they are known, who have by now settled alongside the humans in California. Most of the newcomers were slaves, and the slave masters are now looking for them. They send Aponso to earth to locate the slaves ready for the aliens to pick them up.
Matt and George investigate a series of strange occurrences involving newcomers, who are found to be programmed to carry out someone's dirty work. The method by which they are brainwashed dates back to the slave ship's rebellion group, the Udara, who, we discover, Susan was a part of. Susan and George's lives are further disrupted when Buck enrols in the police academy.
