Team Witch Doctor smokes its motors and faces a major overhaul of the design in order to fix it. As they race to repair it before the next fight, Petunia is hit with a devastating setback minutes before their match.

Team Hypershock has their robot completely gutted in the battlebox. As they race to repair it before the next fight, Kraken can't get its sea legs in its first match and soon finds itself drowning in repairs.

Team Skorpios has their primary weapon decapitated, and is forced to improvise a replacement. As they race to build it before their next fight, Axe Backwards gets split in two.

Team Bombshell loses control and bursts into flames in the Battlebox. As they race to repair before their next fight, Monsoon has a massive battery fire that leaves them rebuilding from the ground up.

Team Ultimo Destructo leaves the battlebox with their bot split in three and rockets malfunctioning. As they race to repair before their next fight, Team Raven is still trying to put together their bot in time to get one fight in on the final day.

After two long years, two world-class bots face-off in a long-awaited rematch.

In a special international showdown, Team USA takes on competitors from around the world.

In the final battles before the Sweet 16, bots give it their final shot to advance to the World Championship.

The championship kicks off as four dominating bots put everything on the line to become the 2018 World Champion and take home the giant nut.

What would happen if we got a message from space? How would we react? Scientists and sci-fi writers, with cooperation from SETI and Carl Sagan's son, Nick, unravel the impact of this world changing event, forming an intriguing hypothetical scenario

How will humans react when an alien spacecraft is on its way to Earth? Will humans learn from aliens, or become colonial subjects? Scientists and sci-fi writers, with cooperation from SETI and Carl Sagan's son, Nick, unravel the impact.

The Arrival has ended. A swarm of small spacecraft depart their huge mothership, and hover in our atmosphere. The ships open their hatches, and deposit thousands of mysterious pods on the earth’s surface. Are they a message, a gift or a weapon?

A mothership the size of Texas is hovering over Earth and we're tired of waiting. We send a rover to explore, and what we find makes us question the definition of life. On Earth, the pods multiply, making contact with them unavoidable.

Go beneath the surface to understand forest fires, car exhaust, and the space station.

Discover the secrets behind the family car, titanium, and letters.

Find out the secrets behind nuclear subs, crash test dummies, and growing fruits and vegetables.