William Shatner's Kirk & Leonard Nimoy's Spock Acting Out Of Character Is Why This Star Trek: The Original Series Episode Is Great

Captain James T. Kirk (William Shatner) and Mr. Spock (Leonard Nimoy) acting wildly out of character makes Star Trek: The Original Series' "The Enterprise Incident" so entertaining. Written by D.C. Fontana, "The Enterprise Incident" brings back the Romulans and reintroduces one of their key weapons, the cloaking device. Revealing surprising new facets to Captain Kirk and Spock, "The Enterprise Incident" is a gem from Star Trek: The Original Series season 3.