The Wild Wild West (1965)

S4E2 The Night of the Doomsday Formula

Dr. Crane, the creator of a groundbreaking explosive, has vanished along with his daughter. If his dangerous "doomsday formula" ends up in the hands of enemies, it could spell disaster for the United States. West and Gordon are on a mission to locate both the professor and his daughter, as well as secure the formula, before it’s too late.