The Siberian tiger is the largest subspecies of tiger and the largest cat in the world. Their numbers have declined dramatically in the last two decades, and scientists are eager to find them in order to gain a better knowledge of their behaviors and personalities. But the task won’t be easy. Siberian tigers are so elusive that more scientists have been to space than have seen a Siberian tiger in the wild. In this groundbreaking documentary, biologist Liz Bonnin and a team of scientists embark on a mission to Siberia to film Siberian tigers in the wild. Time is of the essence for the scientists and filmmakers gathering in a remote Siberian outpost in the depths of winter. Russian scientists estimate that only 300 to 350 of these big cats remain in the wild, and the only way to protect them is to first find them. Capturing the world’s rarest tiger on videotape to better understand its behavior may be the best way to protect it from poachers and loss of habitat. When three orphaned cubs are discovered in the process, a desperate rescue mission is launched.