Indiana and Marion leave Cairo to escort the Ark to England on board a tramp steamer. The next morning, their boat is boarded by the Nazis who once again steal the Ark and kidnap Marion. Indiana stows away on the Nazis' U-boat and follows them to an isolated island where Belloq and the Nazis plan to test the power of the Ark before presenting it to Adolf Hitler. Indiana reveals himself and threatens to destroy the Ark with a rocket launcher, but Belloq calls his bluff for, as archaeologists, they both want to see it opened. Indiana surrenders and is tied to a post with Marion as Belloq performs a ceremonial opening of the Ark, which appears to contain nothing but a pile of dust, the ruined remains of the Ten Commandments. Suddenly, spirits emerge from the Ark; aware of the supernatural danger of looking at the opened Ark, Indiana warns Marion to close her eyes. Belloq and the Nazis, who do not look away, are all killed by the Ark's divine powers, and the Ark closes itself with a crack of thunder. Back in Washington, D.C., the Army intelligence agents tell a suspicious Indiana that they are sending the Ark away to be studied by "top men." In reality, the Ark is sealed in a wooden crate and stored in a giant government warehouse in Nevada filled with countless similar crates.