Ex-boxer Taylor Flint wants to put the past behind her. Yet back on the Hull estate where she grew up, she is drawn into running a boxercise class. For Lauren, Jazz, Aneta and Grace, boxercise soon becomes more than a way to lose weight and have a laugh. Life is tough and throwing the punches helps them to face their challenges.
 
The class meet in The Six Bells, which landlady Nora runs as her own community hub. When the pub is threatened with closure, the women refuse to throw in the towel. They commit to an unlicensed Fight Night to raise cash and rally the locals. Yet as the countdown begins, it's Taylor who finds herself on the ropes.
 
Inspired by Hull's original Mighty Atom, Barbara Buttrick, Amanda Whittington's play Mighty Atoms premiered at Hull Truck Theatre in 2017, as part of Hull UK City of Culture.