At 171 m long, the USS Pennsylvania is the biggest submarine in the US Navy. It can dive deeper than a thousand feet, sail for 20 years without refueling, and remain submerged for up to 6 months. The vessel carries a crew of 155 men and a deadly nuclear arsenal. This film explores how this submarine was made possible through a series of six historic engineering breakthroughs. The film explores the inner workings of six landmark submarines, including the tiny Turtle and colossal German U-Boats. Each features a major technological innovation that allowed engineers to build bigger and bigger submarines.

For many Londoners, the summer is a chance to escape the noise and bustle of the capital in search of relaxation and sun overseas, but as the Brits hit the beaches, London becomes the top destination for super-rich Arab tourists and their supercars.

Quite possibly the biggest star that television has ever produced, Johnny Carson was seen by more people on more occasions than anyone else in American history. Over the course of his 30-year run on The Tonight Show, Carson interviewed 23,000 guests in 4,531 episodes. Yet he remained a very private man who rarely gave interviews himself.

Marty (Colin Farrell), erfolgloser Drehbuchautor in Hollywood, bekommt mehr Inspiration für sein neues Drehbuch als ihm lieb ist: sein bester Freund Billy (Sam Rockwell) mischt die kriminelle Szene in Los Angeles durch den Diebstahl eines Shih Tzu auf. Sein Pech: Es ist der Schoßhund des durchgeknallten Gangsters Charlie (Woody Harrelson). Bevor Marty sich versieht, steckt er mitten in seinem eigenen Drehbuch und will nur noch eins: Überleben! Und seine Geschichte zu Ende schreiben…

Nelsons Navy. Forensic scientists examine the skeletons of sailors who fought under Admiral Nelson’s command, hoping to discover evidence that will shed new light on the realities of naval warfare and life at sea in the 19th century. Using modern technology and dramatic reconstructions, the programme pieces together the stories of a child sailor, an American gunner, a freed slave and a syphilis victim, among others.

Nigel Planer narrates a documentary which traces the origins and development of British heavy metal from its humble beginnings in the industrialised Midlands to its proud international triumph.

In a special investigation in collaboration with Marketplace, FRONTLINE travels to the remote epicenter of the campaign finance debate for a tale of money, politics, and intrigue. How has the Supreme Court's Citizens United decision changed campaigns in America?