Kelsey Yates

After a volcanic eruption wreaks havoc in Austin, the members of the 126 race to save lives at a college pool party.

The 126 crew responds to a military tank on the loose in downtown Austin and a human pile-up at the roller derby; a new paramedic captain joins the team; Owen is reunited with his ex-wife.

Terry wants to file a complaint after he's stopped by a fellow police officer while off-duty in his own neighborhood; Jake and Amy get a glimpse into the difficulties of parenthood when they take care of Terry's kids.