Quarantined with his family as a global plague ravages the world, Clay retreats to the woods where he meets a special little dog who leads him on surreal adventures where choosing the wrong path could cause them both to lose their way forever.

When his mother accidentally kills a Quidnunk in the woods, Osmo Unknown must embark on a quest to find the Eightpenny Woods--the mysterious kingdom where all wild forest creatures go when they die--and make amends.