After four years in the Army, Nicolas Brooklier wasn't sure what to do next. Brooklier, who had served as a transportation and logistics officer and attained the rank of captain, mulled getting ...

Narrator: This is Marine Corps boot camp in Parris Island ... Please do not send any food or bulky items to me in the mail. Narrator: They're only allowed to read the script printed for them ...

Narrator: This Marine Corps recruit isn't actually injured ... Narrator: It's part of their final test at boot camp, known as the Crucible, a 54-hour event that all recruits must complete.