Margot grapples with panic on her wedding day. David deals with heartbreak. A chance encounter between the two sets off something unimaginable.

Prompted by a random game, Margot maps out a trip that promises to be liberating. She and David strike a pact, but Candela plants seeds of doubt.

David surprises Margot and their idyllic trip continues, but things don't remain rose-colored for long. A pact is made for their return to Madrid.

The sisters share secrets and future plans. After traveling to Ávila‎, Margot and David open the door to new possibilities — or do they shut it for good?