Kleo heads to Mallorca, chased by Sven. She infiltrates a party and uses a toxin to paralyze Wieczorek's wife, leading him to make a deadly confession.

With Min and Uwe on her tail, Kleo bribes a little girl to deliver a poisoned Bundt cake to Mielke's jail cell. After a showdown, Kleo digs up a letter.

Kleo and Sven form a wary alliance. Anne visits Kleo claiming to look for her grandfather. After failing to kill her, Uwe sets up a meeting with Kleo.

Severely wounded in a shooting, Kleo has a revealing flashback. With the ominous red suitcase seemingly in hand, Sven shares a devastating truth.

After Andi is wounded by Kleo, a double agent prevents him from unpacking the conspiracy behind the red suitcase. Sven, Kleo and Min move in on a mole.

Kleo and Sven arrive in Chile, where they track down an elusive Jorge. Later they tangle with Ramona, whose water breaks at an inopportune moment.