Six couples arrive at the villa and get a taste of the turbulence in store for them when they face their first Eye Detect test together.

Half the group settles into a second villa to watch from afar — and meet a few single visitors — as their partners party with new and familiar faces.

Guillem, Antonio, Irene, Javi and Vicky process new revelations at a ceremony of truth before the tables turn and they swap villas with their partners.

Those in the second villa struggle to watch their partners form new connections. Julia sets her sights on Antonio. One person reaches a breaking point.

Will Guillem and Sara's conversation clear the air or end their relationship for good? María suffers as Javi gets closer to someone new.

Javi makes a game-changing decision. As they prepare to reunite with their partners, Lucía, Alejandro, Asier, and Inma confront some painful truths.

The moment has arrived for the four couples remaining to decide if they still trust each other enough to stay together — and for one to win the prize.