Walter and Automan unearth a murderous con game and race to the Caribbean to assist Lt. Curtis and Roxanne.

When Automan discovers romance, he is unable to concentrate on helping Walter in investigation of a murder case.

Walter's friend and fellow cop Frank Cooney is killed during the theft of police weaponry. But when the Internal Affairs agent believes Frank was involved, Walter is suspended when he and Auto interfere trying to prove his friend's innocence.