The Dung Beetle is late, the Parasite is asleep and Mrs Larva is more interested in her knitting than the director’s instructions. It’s clear: this amateur theatre company has a long way to go before they can perform their version of The Insect Play, a famous satirical work from 1922 by the brothers Karel and Josef Čapek which features insects with decidedly human traits: greed, egocentrism, jealousy.

Lt. Franta Slama is a top pilot in the Czech Air Force who is assigned to train a promising young flier, Karel Vojtisek, and they soon become friends. When Nazi Germany invades Czechoslovakia in 1939, they both reject the authority of their new leaders and escape to England where they join other Czech exiles in the RAF. While flying a mission over England, Karel crash lands and happens upon the farmhouse of Susan, a young woman whose husband is in the Navy. Karel soon falls head over heels for Susan but, while they enjoy a brief fling, in time Susan decides she prefers the company of the older and more worldly Franta. As Franta and Karel struggle to maintain their friendship despite their romantic rivalry.