The 126 crew responds to a military tank on the loose in downtown Austin and a human pile-up at the roller derby. Meanwhile, new paramedic captain, Tommy Vega, joins the…

With morale running low, Carmen convinces the team to perform “A Christmas Carol” in the ring. Debbie and Bash strike up an unlikely new partnership.

Sam takes Justine to meet with studio execs, Birdie arrives in Las Vegas to spend time with her daughter-in-law, and Debbie makes a new friend.

George wants to change religions for the sake of romance, while Kramer is attracted to a novice nun.