From a hidden island base in the South Pacific, the five Tracy brothers pilot remarkable cutting-edge Thunderbird vehicles from the depths of the oceans to the highest reaches of space, all for one purpose: to help those in need. High radiation levels have been detected over southern Africa - and are rising dangerously fast. Can International Rescue find a way to stop the radiation leak and not get trapped in the treacherous mine? Find out in Crosscut, the first thrilling Thunderbirds are Go adventure - with free removable pop-up Thunderbird 1.