Party plans for Gillian and Faraz are interrupted when the group discovers that everyone on Rock Island keeps freezing - except them! As they attempt to reverse the process, they are shocked to find out that Raquel is unaffected too.

As the gang prepare for Faraz and Gillian's wedding, Faraz mysteriously vanishes and it's down to Taylor, Nori and Ellis to find him while Meesha and Lila try desperately to keep the wedding on track.

While staking out Raquel at Rock Island Dam, the gang are visited by two versions of Uncle Charlie - one younger and one older. They team up to investigate what Raquel is up to, but soon discover that they're all in serious danger.