The Best Laid Plans

As he investigates a number of post office robberies, Nick's narrow-minded attitude towards an old enemy puts her in danger when her ex-cellmate escapes from prison and resorts to drastic lengths with her villainous boyfriend to corrupt the reformed criminal. Meanwhile, Gina is swept off her feet by a handsome Irishman who asks her to help him set up a bar in Spain, whilst Greengrass and David buy a Georgian chest after hearing that its last owner hid his valuable war medals inside it.