This is a relatively short one-act play written to be performed in a church (the first performance was in St. Mary's Church, Oxford).

The topic of the play is an initial struggle and then a succession of dreams by four English soldiers, prisoners of war, in a church which has been turned into a prison camp. Like Fry's other plays, it takes an essentially positive view of the possibilities of human nature, and for all its classification as a "religious" play it is more focussed on the capacities of the human spirit than on divine action.

The dreams present different perspectives shed on an essentially static set of figures chosen by Fry as types -- a man of action but little reflection (David); a man of reflection with little aptitude for action or "normal" interactions (Peter) (he's not obviously Autism spectrum but he could be played that way); a practical figure whose authority comes from his position (Corporal Joseph Adams); and an older man who has inherent authority as a result of experience and temperament (Tim Meadows). After an initial altercation in which the first attacks the second in a burst of temper, they dream of (in order the dreams appear): the Cain and Abel story; David and Absalom; Abraham and Isaac; and the three young men in the fiery furnace. In each dream the dreamer takes one role and projects other roles onto the others; in the last dream they seem to share some component of the dreaming.

The play is not quite static: there are little pivot points of perception during the last dream by Peter ("we can only stay and alter") and David ('to be strong beyond all action is the strength to have") which move them into at least the possibility of some different capacities. Whether the exposition by Meadows in that scene can be seen as transformative or merely expository is left ambiguous, especially as the characters show no clear sign of remembering their dreams.

The war in question has been "generalized", as Fry is more interested in war as a metaphor for living than as a literal thing. The original occurrence which inspired the play was during the English Civil War, and it's worth noting that at no time does Fry use anything to identify the enemy other than "towzers", a term which has a principal reference to a fictional dog in "Towzer's Advice to the Scriblers", a tract from 1681 and the Popish Plot. They speak some other language, unspecified, but not only have provided an English Bible but an English hymn book with a hymn by Mrs Alexander (i.e. of English origin) in it.

This is one of Fry's stronger plays, for all its short length. ( )