17-map Boom megawad, sequel of Urania. After defeating the tyrant monster from Urania, your spaceship was hit by unknown forces and you had to catapult back to the surface of Urania, in the industrial area, between the jungle and the mountains. Earth coalition ships are under fire and cannot help you. Received information from the command center: this time the threat comes from the moon of Urania - Adonis. The task is to find a way to get to Adonis and destroy the enemies there.