S3·E13 Episode 60
Aired January 10, 1980
Synopsis
Burt can't bring himself to tell Mary he won't live to see their baby born. Danny and Polly declare their love for one another. Mary worries about Danny's interracial relationship, but Jodie convinces Danny to follow his heart. Billy loses his virginity to Leslie. Mary wonders whether Real Burt or Alien Burt fathered her baby.