Ponch and Jon track down two thieves who have been stealing shrubs.
When a young woman fears her father is being swindled in an alcohol-rehabilitation centre in Mexico, Mannix goes undercover as an alcoholic who has been admitted there.
Robinson and Scott help a young New Englander (Joey Heatherton) return a priceless painting to an Italian art gallery.
Finding they have delivered a fake, Robinson, Scott and Katie scheme to correct their mistake.
