Plot: Lisa becomes very attached to an 8-year-old boy who she witnesses being crushed by a ride at a fair. Meanwhile, Andy and David try to get a VAD (ventricular assist device) for one of their patients
Alex O'Loughlin
Kate Moennig
Daniel Henney
Christopher J. Hanke
Justina Machado
Amber Clayton
Alfre Woodard
Tim Guinee
Sabra Williams
Matt Earl Beesley
Ildy Modrovich