The game has 22 missions to complete, with upgradeable World War I-era planes, including Snoopy's Sopwith Camel, to control.

In Snoopy’s manuscript, a fictional story set in 1916 Europe during World War I, Charlie Brown is the janitor for the Royal Flying Corps, Lucy is the general, Linus is the intelligence officer and Marcie is the head scientist.

Back at the aerodrome, Charlie Brown is perusing plans for a "doodlebug bomb," a weapon of mass destruction that could change the outcome of the war when he is kidnapped by a German spy.

Conrad, one of Woodstock's relatives, explains the situation to Lucy who then has Sally doing a report on the Woods of Montsec, where the Luftstreitkräfte has built up a base.

When Lucy is informed of this, she dispatches Snoopy to the Mines of the Matterhorn where he defeats several fighter planes, a military train and a drilling automation.

As the Allied Forces move into Verdun Gorge, Lucy, Rerun and Franklin are captured, leaving Linus in command.