Ben Sanderson, an alcoholic Hollywood screenwriter who lost everything because of his drinking, arrives in Las Vegas to drink himself to death. There, he meets and forms an uneasy friendship and non-interference pact with prostitute Sera.
A team of teenagers with attitude are recruited to save Angel Grove from the evil witch, Rita Repulsa, and later, Lord Zedd, Emperor of all he sees, and their horde of monsters.
The legendary Power Rangers must stop the evil space pirate Divatox from releasing the powerful Maligore from his volcanic imprisonment on the island of Muranthias, where only the kindly wizard Lerigot has the key to release him. The hope of victory lies in the Ranger's incredible new Turbo powers and powerful Turbo Zords.