5 In “Stranger in a Strange Land,” Jack is held captive on Hydra Island. One of its inhabitants, Isabel, translates his tattoo as him not being one of those around him. He claims that she knows what the writing says, but not what it means. Nevertheless, Isabel's interpretation matches the episode as in the flashback the viewers see Jack with a kite, which represents the tattoo's literal translation “Eagles high, cleaving sky,” and marks Jack's inner freedom, independence, and bravery.
5 The devil tattoo marks a weak spot in the prison infrastructure, where some of the inmates knocked a hole, creating an entry to an old drainage tunnel.