When the Morgan family returns to Malta a year after Annabelle's disappearance, Beth suspects that Charlie's new girlfriend is hiding something. But despite Natasha and Sylvie's doubts, Beth digs for clues and ends up in a dangerous situation.

After Beth tells Natasha and Sylvie that Annabelle had planned to leave Charlie, they plot to find out what happened the night she disappeared; Beth grows suspicious when she discovers that Charlie has purchased an illegal death certificate.

As the wives investigate Annabelle's disappearance, they identify the man who sold Charlie the fake death certificate; some shocking revelations leave them questioning how well they really know each other.

While Beth is busy planning a birthday celebration, Natasha and Sylvie break into the tennis club's security area to look at CCTV footage and verify the brothers' alibi for the night Annabelle disappeared; the wives begin to warm to Jade.

The family panics when Sky disappears, praying that history isn't repeating itself; after it turns out that Sky plans to meet an internet troll who has information about what happened to Annabelle, the wives, unwisely, decide to confront them.

A surprising return shocks the wives to their core; when Charlie learns that the police are now involved he makes a desperate attempt to flee the island; Beth's suspicions about Frankie's infidelity, and Sky's true paternity, are confirmed.