Tyler Perez

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

Jesse is in denial when his brother arrives at Angels Memorial in bad shape after being pinned down in a warehouse collapse; further tests reveal he has advanced congestive heart failure; Willis opens up to Rox about his brother's death.

A patient who is a self-proclaimed psychic envisions the staff singing and dancing; Willis and Rox put their lives in danger to rescue a congressman and his staffer from a multicar accident.

The doctors must race to save a girl caught in the crossfire of a shoot-out; Willis shifts his focus to field medicine, choosing to work primarily on an ambulance with his new partner, paramedic Rox; Leanne begins her journey to adopt Ariel.

Willis and Rox arrive at a road-rage accident that has caused multiple serious injuries; Elliot doubts his ability as a doctor when he's sued for his role in the death of the SWAT officer involved in the drug bust-turned-shootout.

Mario joins Rox and Willis on the scene of a boat crash; Leanne works to save a brother and sister who drank boiling water through a straw as part of a challenge; Max's father tells Leanne to keep Ariel away from his son.