This time it's Shun and Skyress who are put to the test in the Doom Dimension. Shun is approached by a mysterious little girl who seems harmless, but then pulls out a powerful Bakugan. Realizing that this is his test, Shun and Skyress battle fiercely with the strange girl. Skyress meets an explosive end, but Shuns' grief brings her back to life in an evolved form as Storm Skyress. Together they finish the battle and pass their test. But what of the future of Earth and Vestroia? Is it too late?