Panama's Animal Highway

The Serengeti is one of the most brutal environments on the planet. It's also home to the tough Vumbi lion pride. Using ground-breaking new tools (including a lion-proof peeping Tom robot), National Geographic explorers Michael "Nick" Nichols and Nathan Williamson embed with the lions to reveal a never-before-seen view into a world with razor thin margins between life and death.

Paleontologist Paul Sereno and reptile expert Brady Barr are doing a research on "Sarcosuchus Imperator", a 40 feet long prehistoric relative of crocodiles. The story about the creature is presented through CGI animation as well.

On a summer's night, there's nothing more magic than watching the soft glow of fireflies switching on and off. Few other life forms on land can light up the night, but in the dark depths of the oceans, it's a different story: nearly 90% of all species shine from within. Whether it's to scare off predators, fish for prey, or lure a mate, the language of light is everywhere in the ocean depths, and scientists are finally starting to decode it.

Across the country, high school football unites small-town communities. But when a heinous murder shatters that Friday night dream world, the crime ripples beyond those immediately impacted, and the community will never be the same again.

A 17-year-old girl is murdered. The police have no clues, but a theory arises: she is one of the victims of a serial rapist and murderer. Unpublished interviews and footage bring a shocking revelation about his death.

Before cowboys and before the Gold Rush, there were the original outlaws of the West -- the truly untamed animals that call America home. Elephant seals settling their scores with blood; black and brown bears prospecting for pink gold in the form of thousands of salmon; and bobcats exploring the New World alone. Join National Geographic as we venture inside the coasts, deserts and mountains where these wild creatures roam.