Foxtel highlights: Tuesday, October 20

BIN LADEN’S HARD DRIVE National Geographic 139, 8.30pm

When Osama bin Laden ( pictured) was killed in Abbottabad, Pakistan on May 2, 2011, US Navy SEALs recovered 10 hard drives, five computers, more than 100 storage devices and the 54- year- old al- Qa’ida founder’s journal from his compound. In this one- hour special, author and CNN national security analyst Peter Bergen examines some of the 470,000 digital files seized – including home videos, photos, audio files and more – and tries to decode their many secrets with the help of CIA profilers, criminal psychologists, religious scholars and military experts. By the time the credits roll, a complex portrait is painted of the mastermind behind 9/ 11 and other terrorist attacks.

ADOLF ISLAND History 130, 7.30pm

This fascinating one- hour special chronicles forensic archaeologist Caroline Sturdy Colls ( pictured), who led the team that discovered the gas chambers at Treblinka in 2013, as she tries to uncover a Nazi concentration and labour camp constructed in secrecy on the British Channel island of Alderney during World War II. The film follows Sturdy Colls as she examines remnants of the site and ventures to the official Nazi SS archives in Germany to determine whether Alderney was actually the scene of Nazi mass murders. Witnesses and survivors claim that thousands died there, but only 389 bodies have ever been found. Tune in as she tries to get to the bottom of it all.