Get Smart (1965)

S5E10 The Apes of Rath

A string of mysterious murders has left CONTROL agents dead, seemingly at the hands of a remarkably strong assailant. The sole piece of evidence is a discarded banana peel. As agents begin receiving bananas in the mail, panic ensues within CONTROL, unaware that KAOS is utilizing Chucko, an ape disguised as a human, as their lethal operative. When Max receives one of the bananas, a new agent named Chuck Armstrong is assigned to protect him. However, unbeknownst to Max, Armstrong is actually Chucko in disguise. Just as Max is on the verge of revealing the truth, Chucko kidnaps 99 and ascends to the rooftop, reminiscent of King Kong.