Red Rock reaches a milestone with its 100th episode tonight - that's gone by fast. It's a drama filled episode too as Liam tries to track down Rachel, and is sure she must be with Brian. Determined to catch the pair in the act Liam drives furiously to Brian’s bedsit... but what will he find when he gets there?

Elsewhere, Vinnie suspects Bridget is having an affair with Joe Fallon after all the commotion at the christening. Looks like she may have to come clean about all the money she owes the loan shark.

Also tonight, Katie and David seek refuge away from the commotion at the Hennessys, and by the looks of it, some old feelings are reignited...