Niamh and Shay are partying on the beach when a hooded figure rugby tackles a lad to the ground. The figure reveals himself as Niamh and Shay’s dad, Inspector Finn O’Hare; he saw the lad trying to sell drugs to the kids.

As Finn investigates a shooting, he struggles to keep his temper. Marlene goes the extra mile for her best friend Nicole, alienating stepdad Barry in the process.

When an ATM machine is stolen, new detective Al crosses a line to save someone he loves. Meanwhile, Finn struggles to cope – and has a difficult conversation with Siobhan.

When a car is pulled from Port Devine harbour, the whole town searches for a missing mother. Meanwhile, Al kisses someone he shouldn’t.

As the police officers fight to secure a grieving daughter’s birthright, Al does something truly terrible to save his daughter’s skin.

Sparks fly when Marlene meets an outspoken farmer who hates the police. Meanwhile, a stressed-out Finn is pushed to breaking point.

Still reeling from the state she found her dad in last night, Niamh suggests he might be suffering from post-traumatic stress disorder following his car crash. A furious Finn flies off the handle – Niamh doesn’t know what she’s talking about.

Finn is away receiving treatment for his PTSD, so Concepta takes his place on a fishing trip with Shay and Barry. Their pleasure cruise goes horribly wrong, however, when the boat’s engine explodes – and crew member Brendan is seriously injured.

Detective Constable Al Quinn is in trouble. Callum has told Finn that Al is a corrupt cop. Al manages to convince Finn that Callum is mistaken, but things go from bad to worse when Jake McGrade assaults a security guard and steals a million pounds worth of whiskey from the Port Devine distillery.