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.

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

Kleo follows a lead to Belgrade, where Sven makes a romantic connection. Thilo is on a mission of his own.

Uwe is left cleaning up a mess. Sven unmasks a double agent, while Kleo heads for her family cabin in search of answers.