Love Is a Many Splintered Thing (S02E30)

Monterey Jack's sultry lost love, Desiree Delure, shows up at the Ranger Headquarters and confesses she had chosen the life of crime, but now wants to go straight. Chip's suspicions of Desiree anger Monty so much that he quits the Rescue Rangers! But Monty eventually discovers that Desiree is really the head of a gang of crooks and has set him up to help her commit more crimes. (iTunes)