Act 2 Synopsis: [Scene 1 - an encampment of homeless vagrants under the arches of Waterloo Bridge] The Government Man appears with Rabbie and Narendra and sets them on their mission to gather intelligence. On hearing the sound of a saxophone, Rabbie immediately recognises his friend and fellow busker, Jimmie Joyce to whom he tells his fantastic story. A commotion leads to a police raid to seize illegally-held dogs and, in the ensuing panic, Rabbie is suddenly held immobilised in a searchlight shining from above.
[Scene 2 - a cabin on an alien spacecraft] Rabbie finds himself trapped by a network of tubes in the company of the alien Pig from Act 1 who reveals himself as Dr Mackenzie, a form he assumed during his mission on Earth. Mackenzie stresses the importance of Rabbie's task in stopping the testing of the XZB-3 weapon, which risks the wrath of the Supreme Being. When an exasperated Rabbie demands to see the Supreme Being, his wish is reluctantly granted. A very old man seated in a wheelchair enters and reveals that the history of the Earth was part of a cosmic project that now threatens to be abandoned due to the human race's acquisition of an ultimate weapon that has the potential to destroy the universe altogether. Rabbie's protestations of his powerlessness to do anything to stop the testing of the weapon fall on deaf ears and he is returned to his apartment on Earth.
[Scene 3 - Rabbie's apartment Act 1] Rabbie finds himself on his sofa in his apartment. Narendra tells him of strange occurrences in the street while a radio news bulletin reports the resurrection of the deceased all over the world. Mackenzie appears, as does Jimmy Joyce, who avails himself of Rabbie's bathtub. Mackenzie reports that the testing of the ultimate weapon has taken place and the Supreme Being has ordered the destruction of Earth. There is a knock at the door and the Government Man is revealed, newly resurrected following his murder. All settled down to await the final apocalypse and sing a final song about the transitory nature of existence.