Dr. Daystrom fears going to Elba II

M-5 detects the Woden, an unmanned freighter that is not part of the test, and attacks with real weapons, destroying it. Captain Kirk orders M-5 taken offline, but Dr. Daystrom continues to believe it is working correctly, and refuses for fear of going to the insane asylum on Elba II, where Dr. Janice Lester and Garth of Izar are.