After learning their dad isn't dead, Lee spirals while Glen searches obsessively. Meanwhile, Kirsty strives to stay positive amidst growing threats from her blackmailer.

Kirsty's first day at work is a disaster and her blackmailer demands payment. Meanwhile, Lee and Glen visit an old flame of their dad's, uncovering more clues about Don’s past.

Lee helps Ian explore his sexuality, Glen discovers unsettling family memories and Kirsty finds confidence in dominatrix persona. The brothers' search for their father results in a bar brawl.

The brothers track down their father with shocking results while Kirsty takes a professional risk, that surprisingly pays off.

A shocking photo shatters Glen's world and leads to a catastrophic birthday dinner for Sue. Meanwhile, Ian finds unexpected companionship.