: Kitai is hunted by highly evolved predators and an Ursa , a terrifying alien creature that escaped the crash and tracks its prey by "smelling" fear.
: During a spaceflight, their ship is caught in an asteroid storm and crash-lands on Earth, now a quarantined and hostile environment where every living thing has evolved to kill humans.
: Under his father’s guidance via a communicator, Kitai learns to master "Ghosting," a technique of completely suppressing fear to become invisible to the Ursa. He eventually defeats the creature, activates the beacon, and is rescued along with his father. After Earth (2013) - Full cast & crew - IMDb