Having freed the trolls of Dismal Swamp from the tyranny of Stygius Rex, the reluctant troll leader Rollo has left the swamp on a bittersweet mission: to return his little friend Clipper to her people in the Forbidden Forest. It's a dangerous trip but he's determined not to fail. Ludicra, the troll who now finds Rollo worthy of her attentions, is distraught over his absence and convinced he needs her help. So she assembles a crew of trolls, ogres and even a gnome to cross the Great Chasm in search of her beloved. But the Chasm holds its own dangers and now the rescue party is in need of rescue!