Zanna faces a challenging first day running the emergency room at a frantic, overcrowded Berlin hospital.

Under pressure from the medical director, Zanna is forced to hunt for a scapegoat. Ben insists on his own methods to treat a pregnant patient.

Zanna clashes with the staff after introducing new department rules. Ben's struggles become more evident.

Ben and Zanna finally begin to make peace. Emina, Dom, Olivia, and Olaf find themselves fighting through a busy night shift.

Ben's addiction becomes even more dangerous, whilst at the same time Zanna faces serious consequences of a decision; Emina's family life comes crashing into KRANK.

Zanna and Emina both struggle with how to move forward, as a cold-turkey Ben grapples with post-traumatic stress disorder; Dom makes a life-changing mistake.

Zanna and Ben finally have to address his health - and their feelings. Olivia and Olaf strain as they work together. Dom deals with terrible guilt.

Season finale. A huge club fire tests all the doctors and nurses of KRANK, and everyone faces difficult decisions about their futures.