Vietnam vets and friends Cody Allen and Nick Ryder decide to start a detective agency in Los Angeles. They work out of "Riptide", Cody's boat anchored in the harbour.
They also recruit another vet, the technically gifted Murray 'Boz' Bozinsky to deal with the hi-tech aspects of their work.
Together the trio set about working on some wild and exciting cases, often getting in the way off and angering the local police, most especially Lieutenant Ted Quinlan.
Assisting them on the job was a robot that Boz built, "The Roboz", as well a wide assortment of vehicles, including their unreliable ancient helicopter, "Screaming Mimi" and their speed boat, the "Ebb-Tide".