Spock appeared as the science officer on the USS "Enterprise" in the first pilot for the series, "". This was not shown on television at the time, but the events of the episode were shown in the two-part episode "" of the , and Spock's previous 11 years of service on the "Enterprise" were described. Spock was one of the members of the away team who joined Captain Christopher Pike (Jeffrey Hunter) on a mission to Talos IV in order to investigate a distress call. Spock did appear in the second pilot, "Where No Man Has Gone Before", but this was broadcast initially as the third episode. During the events of that pilot, Spock became concerned at the risk to the ship posed by Lieutenant Commander Gary Mitchell (Gary Lockwood) and suggested possible solutions to Captain James T. Kirk (William Shatner).