David Attenborough narrates the lives of four growing tiger cubs using footage collected by hidden-camera-carrying elephants.
Over two years, the elephants help capture the most intimate portrayal of tigers ever filmed. As they grow, the cubs move from their mother's milk onto meat. Fortunately, the tigress is a skilled hunter.
Charger, their imposing father, keeps his distance but helps to protect his vulnerable offspring from rogue male tigers and leopards.
The half-grown cubs are learning the hunting and fighting skills they will need as adults. The cameras also give an insight into the worlds of other animals, with leopards presenting a real threat to the growing cubs and deer making good hunting practice.
The tigers head to a water hole to cool off on a steaming hot day and the spy-cams show that the jungle pools are a magnet for a whole array of forest animals, including wild boars and sloth bears. But disaster strikes when both the cubs' parents are injured and a rogue male puts in an appearance.
Their biggest challenge is learning to hunt for themselves, but their mother soon loses patience. Many new animal stars make their appearance, including an irresistible jackal family that has to cope when the tiger family invades their backyard, and a flock of peacocks that tease the tigers by playing a game of dare.