An astronaut lecturing in Boston collapses and is brought to St. Eligius; Papandrao and Rosenthal continue to clash; Axelrod loses both Marcy and his battle with the bulge; Dr. Craig impatiently assumes the responsibility of explaining the facts of life to a mentally disabled young woman; and Dr. Westphall hears some hard to take truths from his sister-in-law,

Dr. Craig arranges to take Yvonne home to her parents; Ehrlich advises a plastic surgery patient behind Dr.Caldwell's back; Capt. Neal arrives to evaluate the astronaut's condition and to supervise his transfer to Walter Reed, despite Westphall and Morrison's objections; Chandler and Dr. Turner plan a vacation together; and John Doe #6 decides he's Mary Richards and plans a party to celebrate.

Mr. Galecki brings Barbara back to the Craigs; Dr. Turner leaves unexpectedly for her sleepy hometown down South; Rosenthal slaps Lucy; Jack takes his remedial exam and Colonel Cochrane reconciles himself with God.