The odds are stacked against Colter as he is tasked by a convicted murderer's teenage daughter to track down a missing witness who could prove her dad's innocence.
Wolowitz and Sheldon bond over having disappointing fathers; Leonard is disturbed when his mother finds a new best friend in Penny.
Incoming injuries to the ER add drama to a school group's field trip to the hospital; Stephanie pursues one of the chaperones; Callie operates on a police captain's leg; Amelia must deal with her feelings for Owen.
Christy helps Jill adjust to being a new foster mom; Bonnie has trouble convincing tenants that she's a good building manager.
Dexter continues to juggle life as a family man and serial killer; Miami Metro investigates a murder.