Kitai administers the antidote, but two of his capsules become damaged and his nervous system shuts down. Giant baboons attack Kitai, and during his escape a poisonous leech bites him. Kitai leaves to find the tail section, with Cypher guiding him through the communicator. Cypher warns him to avoid the highly evolved fauna and flora, and to beware of violent thermal shifts. Cypher gives Kitai his weapon, a wrist communicator, and six capsules of a fluid that enhances the oxygen intake so he can breathe in Earth's low-oxygen atmosphere.
Inside is the backup beacon which they can use to signal Nova Prime.
Cypher instructs Kitai to locate the tail section of the ship, which broke off on entry to the atmosphere. Both of Cypher's legs are broken, and the main emergency rescue beacon damaged. Kitai's mother Faia (Sophie Okonedo) convinces Cypher to take Kitai on his last voyage before retirement.ĭuring their flight, however, an asteroid shower forces their spaceship to crash-land on the now-quarantined Earth, near erstwhile Central America. Kitai trains to become a Ranger like Cypher, but his application is rejected due to his recklessness, and Cypher views him as a disappointment. Meanwhile, Cypher's son Kitai Raige (Jaden Smith) blames himself for the death of his sister Senshi (Zoë Kravitz) at the hands of an Ursa.
The Rangers struggle against the Ursas until Cypher learns how to completely suppress his fear, a technique called "ghosting." After teaching this technique to the other Rangers, he leads the Ranger Corps to victory. Their secret weapons are the Ursas, large predatory creatures that hunt by "sensing" fear. One thousand years later, the Ranger Corps, a peacekeeping organization commanded by General Cypher Raige (Will Smith), comes into conflict with the S'krell, alien creatures who intend to conquer Nova Prime. In the 21st century, an environmental cataclysm forces the human race to abandon Earth and to settle on a new world, Nova Prime.