Despite the title, the Wishbone family are far from happy. In an attempt to reconnect as a family, Mum and Emma plan a fun night out. However, her plan backfires when an evil witch curses them, and they're all turned into Monsters.

In 1914, just after of Franz Ferdinand's assassination that eventually caused World War I, a steamship approaches a desolate island on the edge of the Antarctic Circle, where a young nameless man is poised to take the post of weather observer, to live in solitude at the end of the earth along an entire year until the arrival of his replacement, where the next twelve months his entire world will consist of a deserted cabin, trees, rocks, silence and the surrounding sea. Meeting Gruner, island's...