Part One, The Only Hope. 300,000 years ago, Mars was dying. Once a rich planet full of life, now it's quickly heading towards extinction as its magnetic field fails. To save Mars, Captain Franz Leir must find Raidem, a rare element that can reignite the atmosphere and save all life on Mars. 4.3 stars, 46 ratings. From $0.99. Free via KU. SHOP NOW /