Stacey hits rock bottom. A mysterious stranger from Whitney's past returns. (R)
Archie's return upsets things for Peggy and pushes Phil right to the edge.
BBC Two Scotland only
BBC Two England, Wales only
Heather's secret is out, but who's the daddy? Meanwhile, Dawn's web of lies falls apart. (R)
Denise struggles to forgive Lucas, unaware that Trina has more nasty surprises in store. (R)