An artificial heart that will save the life of a young girl is stolen.

Cameron uncovers an illegal arms-smuggling ring---but not before Allie and a visiting scientist are kidnapped and forced to develop a highly advanced fighter jet.

Thieves after a new weapon have the Viper team trapped in an abandoned refinery.

A string of diamond thefts points to a notorious criminal, but she cooperates with the Viper team to catch whom she claims is the real culprit.

An arson killing rings a bell for Cole, who investigated similar cases years ago and suspects they're related. His only lead is a mysterious woman who was on the scene.

Cole's girlfriend becomes a prime suspect in a million-dollar robbery.

An apparent terrorist bombing camouflages an elaborate plot for an heir to claim her father's million-dollar pension.