Following a brutal break up, Ally flees to her dad's house in Sheffield with her ex's cat (who always preferred her anyway). When she realises Emily isn't coming to win back either her or the cat, Ally takes to the sofa to mourn the future she'd planned.

After a few days' grace, her dad calls in reinforcements - Ally's old friend and first beard, Jeremy. Reunited, the two find solace in each other's heartbreak and an endless supply of baked goods. But jacked up on sugar and mutual delusion, they concoct a plan to run the half marathon and win back their exes...

This seems like the perfect example of their ability to commit and better themselves. But will their exes be waiting at the finish line, or is there a whole new future on the horizon?