As a young soldier in the Belgian Army, Indy learns firsthand the savagery of warfare while participating in the Battle of the Somme. Almost succumbing to despair as his life becomes an endless round of artillery barrages, nerve gas attacks and decaying corpses, Indy fears that death will be his only way out. Then he is captured by the Germans and confined to a POW camp where he and fellow prisoner Charles de Gaulle hatch a daring scheme to win their freedom in true "Great Escape" style.

In Italy, Indy's espionage work takes him behind enemy lines where he embarks on an important propaganda assignment that he hopes will bring a swift end to the war. Along the way, he engages in a comic rivalry with Ernest Hemingway over the affections of a beautiful Italian girl. After being wounded in action, Indy is transferred to North Africa where he joins the French Foreign Legion. While trying to uncover the identity of a traitor in his own ranks, Indy battles hostile Berber tribesmen and engages in an innocent flirtation with author Edith Wharton.

Indy's work with the Belgian Army takes him to the front lines of Verdun in 1916, where officers' callous stupidity sends thousands of men to their deaths for virtually no territorial gain. In Paris, Indy falls in love with the seductive German spy Mata Hari, only to suffer the pains of deceit.

A top secret mission for French Intelligence brings Indy to Istanbul during the first world war. Exploring the city's dark and dangerous streets, he is thrust into a web of betrayal and murder when he discovers a vile Turkish plot to assassinate French espionage agents. Evil of a more enduring kind awaits him in Transylvania where he engages in a mortal combat with bloodthirsty Vlad the Impaler and his horrific army of the living dead. With his life at stake, Indy must garner all his strength and wits in order to defeat the fiend and save mankind.

While working for a Hollywood movie studio, Indy finds that he is no match for the wily megalomaniacal director Erich von Stroheim when the two lock horns over the ever increasing budget of Stroheim's film Foolish Wives. Though battered by the film industry, Indy decides to give it one more chance and goes on a location shoot with legendary director John Ford. Ford and his cronies, including aging gunman Wyatt Earp, help him see the magic of movies and moviemaking, and when an actor is accidentally killed, Indy pitches in to save the film.

Posing as a dancer for the Ballets Russes in Barcelona, Indy meets old friend Pablo Picasso, and narrowly outwits inept German spies. Dashing off to Prague, he then arranges for a telephone installation to await an important call, which becomes a bureaucratic nightmare until Franz Kafka intervenes.

Working with the French Secret Service, Indy joins the legendary Lafayette Escadrille flying unit and embarks on dangerous airborne reconnaissance missions behind enemy lines. A run-in with German Ace Manfred von Richthofen leads to a death-defying dogfight that leaves Indy grounded and hot-in-pursuit of German aircraft designer Anthony Fokker. Undercover in hostile enemy territory, Indy discovers that the Germans possess a remarkable secret weapon that could change the course of the war and he resolves to bring news of it back to the Allies...if he doesn't destroy it first.

Going to college and working in a seedy speakeasy bring Indy into contact with jazz great Sidney Bechet, who teaches him how to play the blues. Unfortunately, he also crosses paths with up-and-coming thug Al Capone and it's only with the assistance of his dorm roommate, future Untouchable Eliot Ness, that Indy is able to solve a vicious murder and prevent himself from ending up in a pair of cement overshoes.

First love - or first infatuation - overwhelms Indy in Vienna, where he is smitten with the daughter of Archduke Francis Ferdinand. Needing emotional guidance, Indy consults Sigmund Freud and Carl Jung to discover what love is all about. In Florence, when Indy's mother is equally smitten with Giacomo Puccini, composer of Romantic operas La Boheme and Tosca, Indy must guide his parent safely back to her spouse.

Going to college and working in a seedy speakeasy bring Indy into contact with jazz great Sidney Bechet, who teaches him how to play the blues. Unfortunately, he also crosses paths with up-and-coming thug Al Capone and it's only with the assistance of his dorm roommate, future Untouchable Eliot Ness, that Indy is able to solve a vicious murder and prevent himself from ending up in a pair of cement overshoes.