On his motorcycle Stein, a half-blood Indian, tries to stay out of the hands of the police, who are chasing him for accidentally killing a cop. Together with his friend Alan and a beautiful but desperate girl Stein will get involved in a robbery and more death. The police intensify the search, but the three won't give up that easily.
A police captain (Aldo Ray) is caught between businesses operating on the Los Angeles Sunset Strip who don't like the punks hanging out, and his belief in allowing the kids their rights. But when his daughter (Mimsy Farmer) gets involved with an unruly bunch, his attitude starts to change.
"Genius" accidentally invents "goo" which causes living things to rapidly grow to an enormous size. Seeing an opportunity to get rich, some delinquent teenagers steal the "goo" and, as a result of a sophomoric dare, consume it themselves and become thirty feet tall. They then take over control of the town by kidnapping the sheriff's daughter and dancing suggestively.
