Paul Gasek

Marine biologist Kori Garza and underwater cinematographer Andy Casagrande journey to French Polynesia to track Kamakai, one of the largest tiger sharks on record.

For years, the smaller, unremarkable-looking bull shark has come in third behind the great white and tiger sharks when it comes to deadly attacks on humans. But as climate change warms the world's waters, and its territory begins to spread, the bull shark enters the ring to prove its worth and leave with the title of the world's most dangerous shark.

Hosted by legendary broadcast journalist Walter Cronkite, this program follows the step-by-step process of rehabilitating the outdated shuttle and documents the extensive training the new crew endured during their preparation. Witness the launch of flight STS-114, with status updates as the mission unfolds. We'll hear from the crew themselves as they install the new satellite-repair mechanism on the International Space Station and fix the re-entry panels on the outside of the shuttle. From planning to landing, every detail of NASA's Return to Flight mission is showcased. Hear from the experts and the astronauts as the dramatic story of STS-114 is recounted in high definition both on the ground and in space.

Marine biologist Kori Garza and underwater cinematographer Andy Casagrande journey to French Polynesia to track Kamakai, one of the largest tiger sharks on record.

For years, the smaller, unremarkable-looking bull shark has come in third behind the great white and tiger sharks when it comes to deadly attacks on humans. But as climate change warms the world's waters, and its territory begins to spread, the bull shark enters the ring to prove its worth and leave with the title of the world's most dangerous shark.

Hosted by legendary broadcast journalist Walter Cronkite, this program follows the step-by-step process of rehabilitating the outdated shuttle and documents the extensive training the new crew endured during their preparation. Witness the launch of flight STS-114, with status updates as the mission unfolds. We'll hear from the crew themselves as they install the new satellite-repair mechanism on the International Space Station and fix the re-entry panels on the outside of the shuttle. From planning to landing, every detail of NASA's Return to Flight mission is showcased. Hear from the experts and the astronauts as the dramatic story of STS-114 is recounted in high definition both on the ground and in space.