Sienna breaks into Summer's flat in the hope of finding some evidence to prove what she's really like. Verity wants to rekindle her romance with Sami. Cleo suspects that Toby's hiding something.

The walls are closing in on Sienna after what she did to Summer. Sami asks for Diane's help to find Verity. Martine prepares to tell Felix how she feels. Imran feels threatened.