Varun should know better than to trust any plan his big sister Usha concocts, but when the plot involves a beautiful girl he has a crush on, he goes against his better judgement and joins a group of their friends for a Diwali party in an empty warehouse out on the regolith. True to form, Usha gets him in trouble again, and the siblings find themselves donning unfamiliar surface suits and attempting to walk back to the city of Mordor alone.