Episode 7 (S03E07)

Local GP Siobhan raises the alarm when a vulnerable dementia patient goes missing. As Marlene and the team search for the ‘Old Seadog’, they find themselves uncovering a tale of shipmates, smuggling and stolen treasure. Marlene needs her best friend to organize her wedding, but Nicole is falling to pieces. It’s left to Barry to remind Nicole of her wedding vows – for better or worse – and persuade her to visit her disgraced husband Clint in prison. Is there any way these two can repair their shattered marriage? (BBC iPlayer)