Test pilot Tuck Pendleton volunteers to test a special vessel for a miniaturization experiment. Accidentally injected into a neurotic hypochondriac, Jack Putter, Tuck must convince Jack to find his ex-girlfriend, Lydia Maxwell, to help him extract Tuck and his ship and re-enlarge them before his oxygen runs out.

When one moment changes everything, Henry's family are split between a past they no longer recognise, and a future they could never foresee. Based on the Sunday Times best-selling autobiography by Henry Fraser, The Little Big Things is an uplifting and colourful new British musical with an explosive theatrical pop soundtrack in a world premiere production.