When their mother is lost in a terrible car crash, two children set out to bring her back from the Underworld—a nightmare place populated by remnants from old mythologies, defunct pantheons, and forgotten folklore. But soon enough, the children learn that they cannot rescue their mother without rescuing themselves first.

Sometimes frightening, sometimes funny, and often heartbreaking, Assam & Darjeeling is the story of a brother and sister who have to go through hell and make it out again… no matter what the cost.