Teenager Alexander and his friend Determinate, the amazing train that talks and feels are stranded in the Mother world, a far-advanced planet than ours, ruled by lethal Creatures. Alexander is taken in by families and Elders living in hiding in the mountains, but even that is not safe unless he can prove he is the saviour they have been waiting for. Meanwhile, back in his home village, the unlikely detectives of Alexander's girlfriend Moody Mary, 7-year-old Johnny, dear old terrified Alvin and his ex-military friend, Garcia are on the track of a lethal Creature, living secretly amongst them in our little world. As soon as they expose his identity, the evil in both worlds collides.

Cue Determinate the train and his newly developed superpowers, with a little help from a gang of very elderly ladies, known as Ladyunruly, for good reason. But can they defeat an army of fearsome Creatures who have the talent of becoming invisible and can slice a being in 2 in seconds? Everything is in the air, nothing and no one is safe, until the discovery of the mysterious magic Book. Will this save both Worlds? Read on!