An aggressive ex-convict known as "Crump's Brother" is picked up by a local teen while hitchhiking on the freeway and informs him about two women he intends to party with in Torrance Beach, across from the Frankie Avalon house.

They arrive at the house and meet an extremely attractive young woman, Lanie, who sends them to a liquor store for alcohol.

They arrive at the house and after a brief altercation, Tack convinces the group to go to a party in Palos Verdes, to Joe and Hubbs' irritation.

They flee to the kitchen but shortly afterwards, they hear the commotion subsiding; Jill's father, Warren, has returned from a college reunion and beaten the entire crowd of kids—including Crump's Brother—unconscious.

Hubbs manages to escape by jumping through a window on the upper floor, but Warren catches Joe and holds him captive awaiting the arrival of the police.

Joe then plays the Blue Öyster Cult song "(Don't Fear) the Reaper" as the credits roll.

The scalpers are played by actual Blue Öyster Cult band members Eric Bloom and Buck Dharma.

The producers initially titled the film Tack's Chicks and then Teenage Wasteland, before settling on The Stoned Age.

However, the rights to Led Zeppelin music were not available, and several other bands were considered, including Yes, Jethro Tull, The Who, The Grateful Dead, and Pink Floyd, before Blue Öyster Cult was decided on.