After Jack becomes apprenticed to a Druid bard, he and his little sister Lucy are captured by Viking Berserkers and taken to the home of King Ivar the Boneless and his half-troll queen, leading Jack to undertake a vital quest to Jotunheim, home of the trolls.
In 2194 in Zimbabwe, General Matsika's three children are kidnapped and put to work in a plastic mine, while three mutant detectives use their special powers to search for them.