The following day, a Nazi U-boat intercepts the steamer and seizes the Ark and Marion; Jones covertly boards the U-boat. The vessel travels to an island in the Aegean Sea, where Belloq intends to test the power of the Ark before presenting it to Hitler. En route, Jones ambushes the Nazi group and threatens to destroy the Ark, but is forced to surrender after Belloq deduces he would never destroy something historically significant and also wants to know if the Ark's power is real. The Nazis take Jones and Marion to the test site and restrain them. Belloq ceremonially opens the Ark but finds only sand inside. At Jones' instruction, he and Marion close their eyes to avoid looking at the opened Ark, as it releases spirits, flames, and bolts of energy that kill Belloq, Toht, and the assembled Nazis before sealing itself shut. Jones and Marion open their eyes to find the area cleared of bodies and their bindings removed.