Frank's dad, Neville (Ray Winstone, The Departed), wasn't the greatest father around but now that he's dead he has a lot more to offer - including superhuman feats and time travel. Of course, Franks's mom, Gwen (Pauline Quirke, Broadchurch), thinks that Frank's imagination is compensating for the loss of his father. But Frank's new relationship with his father - real or imagined - allows him to reassess how he feels about both his parents. When Gwen meets someone new and tries to move on with her life, Frank has to start making decisions of his own.