TC and Topher rush to the scene of a concert where a fireworks explosion has caused massive chaos. As the two jump in to manage the mess, a second explosion causes problems for one of our own. Syd, returns from Afghanistan and helps out with the team... (more) at San Antonio Memorial but finds herself grappling with best plans for herself and her young daughter. Drew tries to help but runs afoul of their unique family dynamic. Paul and Shannon put aside their differences to treat a patient and find they have more in common than they thought. Meanwhile, Jordan and Scott treat a patient injured in the fireworks explosion and have a chance to address some simmering differences.