6. Episode 6
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Karl and Elise face a tense and gripping showdown with the Pied Piper.
5. Episode 5
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An increasingly isolated Karl makes a major breakthrough in the search for Saban.
4. Episode 4
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When Karl and Elise reach a dead end in the case, they both resort to unconventional means in pursuit of the truth.
3. Episode 3
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Another message from the Pied Piper leads Karl and Elise to a horrifying discovery.
2. Episode 2
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Karl and Elise try to decode the Pied Piper’s demands, while BB joins the French investigation.
1. Episode 1
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Karl and Elise reunite for an emotive and morally complex investigation when a boat carrying child refugees is torched in the middle of the Channel, leaving no sign of its passengers.