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Just as siblings Esther and Paul Vanhove recruit a group of young people to test their revolutionary soul mate implant, investors drop a bombshell.

While the testers venture out into the world to meet their soul mates, Paul agonizes over Joséphine, and Esther takes a drastic step to help her mom.

After stumbling on a clue to Joséphine’s fate, Esther worries there’s a mole at the company. Billie asks Niels to take a break from seeing Claire.

Esther tries to help Paul connect with Joséphine in virtual space. Niels learns his status in the test is in jeopardy. Ana rethinks her mission.

Paul learns the truth about Joséphine’s disappearance, Niels seeks help at a residential clinic, and the testers’ hallucinations take a dark turn.

To activate her mother’s memory, Esther returns to their old home and uncovers a shocking family secret. Niels receives an unexpected visitor.

As both Esther and Lucas struggle to come to terms with their new realities, Billie helps Ana through a crisis, and Martin begins to act erratically.

With the testers’ lives hanging in the balance, Esther goes to extremes to revive Martin. Meanwhile, Paul and the company prepare for launch day.