Harm and Mac assist students in a mock-court martial of a captain who blew up a battleship and killed 29 people.
Spirit starts dating the lead singer of a rival band, jeopardizing her relationship with Breanna and Arnaz.
When her boyfriend cancels their date on graduation night, Spirit becomes depressed and tries to drink away her sorrow.
After his ex-wife persuades him to do so, Flex meddles in Breanna's love life, hoping she will choose a college in California instead of staying in Baltimore with Arnaz.
The gals persuade Joan to end her period of celibacy with a casual fling, but Joan is unaware her potential partner is engaged, leading to a rumor that could end his relationship.