When a group of boys accidentally stumbles on Gisborne's weapons testing site, all but one is taken prisoner. When the alarm's raised, Robin hatches a plan. But with Gisborne armed to the hilt in an indestructible suit of armour, a rescue attempt is more difficult than it might first appear. Robin must think fast if he's to save a boy's life and stop a vital part of the Sheriff's war machine...
Elenco: Keith Allen , Richard Armitage , Sam Troughton , Jonas Armstrong , Gordon Kennedy , Joe Armstrong , Harry Lloyd , Anjali Jay , David Harewood , Lara Pulver , Joanne Froggatt , William Beck , Toby Stephens , William Beck .