See You Later, Alligator (S01E10)

A number of incidents convince Ingmar that he has to move back to Sweden. Sun is quick to take his place in the agency, but before Ingmar has time to leave, they get a case where his own daughter seems to be in danger. When things go wrong, they all get dragged into the mess in their most dangerous case to date which also leads them towards Ingmar’s mysterious past. (iTunes)