In Where Chaos Reigns, the player characters travel through time to four alternate realities in an attempt to save their own reality. The module includes new magic/technological items.
The player characters are chosen by mysterious forces to fix a breakdown in reality. Far away in dimensions, is Aelos, where time is breaking down. This is affecting the 'main' reality. For example, flowers bloom out of season, fish fall out of the sky and the moon has turned blue. Even the entities known as the 'Immortals' are powerless to help, it is up to the player characters.
CM6 Where Chaos Reigns was written by Graeme Morris with Jim Bambra and Phil Gallagher, with a cover by Brian Williams and interior illustrations by Jez Goodwin, and was published by TSR in 1985 as a 24-page booklet with an outer folder.