The Journeyman Project: Pegasus Prime is a first-person point and click adventure game that emphasizes exploration and puzzle solving. It is a remake of the original Journeyman Project game, using the same graphics, sound, and actors from its sequel Buried in Time.

In the year 2318, Earth is on the verge of a historic moment, it is about to join the Symbiotry of Peaceful Beings. As Agent 5 of the Temporal Protectorate you are charged with protecting the world's first time machine, the Pegasus. When it becomes apparent that a saboteur is messing with the timeline, you must use the Pegasus to travel back and save history while being careful to not contaminate the timeline yourself.