The "Satans" are a very cruel biker gang led by Anchor. The gang goes to a diner in the middle of nowhere in the California desert where they begin to terrorize Lew and his patrons and his waitress, Tracy. After a little killing, one of the patrons named Johnny manages to escape from the bikers into the desert. They need to reach a town before the Satans catch up to them and kill them.

Lawsuits fly when a widow believes a gifted surgeon allowed her husband to die so his heart could be transplanted into the doctor's ailing mentor and friend. Operation Heartbeat was the pilot movie for the TV series Medical Center.

The story begins when Toby (Ivan Jackson), a young English businessman, arrives in South Africa to take charge of a publishing firm. He knows little about apartheid and so at first sees no contradiction in developing a relationship with an elite, upper-class white woman and with a woman dedicated to fighting apartheid. But as Toby makes friends with one of the black South Africans (Zaku Mokae), and as he registers both the subtle and more obvious, deep-seated racial prejudices of the minority white population, some of the truth of the oppression here begins to dawn. That is brought to a head when tragedy strikes.