Years ago, a team of four minifigures went on a great journey to seek the last essence of pure Imagination. After having found it on the mysterious planet Crux, the greedy tycoon of the expedition, Baron Typhonus, was pulled into the source, the stress causing Crux to explode into thousands of other worlds. After the incident, the explorers decided to form their own factions. The player, aboard The Venture Explorer, a ship carrying new recruits, escapes to Avant Gardens. The player then travels to Nimbus Station, where they must choose which faction to join, and restore balance in the universe.
—Zak Ferguson