Last Tango In Halifax returns for a brand new series, picking up where it left off with Alan regaining consciousness after his heart scare. Celia is so relieved, she promises never to fall out with him again - and realising life is too short, the couple decide to get married as soon as possible. Things aren't quite so rosy between Caroline and John, however, and Gillian's relationship with her father takes a knock when he discovers who she's slept with.