 The group and the pilots locate and repair a solar-powered boat, using it to reach the ruins of a former civilisation that is now inhabited by sniper robots.The Doctor uses the remains of one robot to temporarily disable the others with an electromagnetic pulse, locating a series of tunnels the group can use as a shortcut to the finish line.During this time, the Doctor learns that Angstrom seeks the cash prize to save her family from ethnic cleansing by the Stenza, while Epzo is out for himself due to his upbringing to distrust others.