Hart to Hart (1979)

S5E15 The Dog Who Knew Too Much

Jennifer and Jennifer find themselves in a perilous situation when they are assigned to care for a dog that unknowingly holds a precious biogenetic formula. Soon, they become targets of ruthless industrial spies determined to retrieve the valuable secret. As the danger escalates, the two Jennifers must navigate a web of intrigue and deception to protect the dog and the formula from falling into the wrong hands.