Indiana Jones and the Great Circle is a classic Indiana Jones adventure, and that means that the story is a big part of the game. Taking place between Raiders of the Lost Ark and The Last Crusade, The Great Circle puts Indy to the test against the rising Axis powers in another globe-trotting journey. It only stands to reason that everything ultimately comes down to a climactic final confrontation, and attempting to match the memorable showdowns of the films gives the game a lot to live up to.

https://screenrant.com/indiana-jones-great-circle-final-boss-ending-explained/