The gang wonder if there is life on other planets, so the Kratt Bros. decide to head to outer space to look for clues. Back on Earth, Jimmy discovers a tardigrade, a microscopic creature that seems to be able to survive in the most extreme conditions. When the guys encounter problems in space, the Wild Kratts hope that the powers of their new friend, the tardigrade, can help rescue Martin and Chris. Science Concept: The basic needs required for life.