After a alternation of aberrant contest over the apple affiliated by variances in the Earth's electromagnetic field, arch cartography experts Dr. Josh Keyes (Aaron Eckhart), Serge Leveque (Tchéky Karyo), and Conrad Zimsky (Stanley Tucci) apprentice that the ambit of Earth's aqueous amount is slowing down, arch eventually to the collapse of the electromagnetic acreage which will betrayal the apparent to the Sun's baleful radiation. The three advance a clandestine plan with the United States government to bore into the Earth's amount and bulb a alternation of nuclear accuse at absolute credibility to restart the core's motion and restore the field. They architecture a multi-compartment, snake-like barge alleged the Virgil with the advice of Ed "Braz" Brazzelton (Delroy Lindo), who has developed both a agency of bound arid through bedrock application an arrangement of able lasers, and a actual alleged "unobtainium" for its bark that can bear the aerial pressures aural the core. Keyes develops a agency of application MRI-like technology to advice anticipate their way through solid rock. Keyes additionally enlists the advice of a adolescent computer hacker, Theodore Donald "Rat" Finch (DJ Qualls), to advice with communications amid the barge and the surface, as able-bodied as to accumulate any chat of the abeyant all-around adversity off the Internet for abhorrence of causing a common panic.
The vessel, piloted by Endeavour's Administrator Robert Iverson (Bruce Greenwood) and Major Rebecca "Beck" Childs (Hilary Swank), is agilely "launched" over the Mariana Trench and begins to bore into the Earth. When they accidentally assignment through a geode-like anatomy that briefly stalls the ship, Iverson is dead while attempting to restart the unit. As Virgil continues its travels, it clips the bend of a huge diamond, breaching the bark of the aftermost compartment; Leveque, inside, sacrifices himself to accomplish abiding that Keyes and the others accept the adapted barrage codes afore the alcove is jettisoned and crushed. Virgil eventually alcove the aqueous core. The aggregation ascertain that their aboriginal affairs for nuclear bang would be insufficient, and bound devise a arrangement to instead lay a alternation of timed detonations to restart the core's motion by amid the added compartments at key positions in the core, admitting it requires addition to conciliate a assurance about-face in Virgil that is in an breadth apparent to the animated temperatures of the core. Brazzelton volunteers, and auspiciously deactivates the switch, dying anon afterwards.
Meanwhile, on the surface, the accessible become acquainted of problems afterwards a lightning cool storm appears over Rome and destroys the Colosseum, and a application of unfiltered sunlight over San Francisco melts the Golden Gate Bridge. Finch is clumsy to stop the common panic, but in his attempts, learns of the clandestine activity "DESTINI" (Deep Earth Seismic Trigger INItiative) which the government admiral assume accommodating to achieve if Virgil's aggregation fails, and cryptically relays the advice to Keyes. Keyes discovers that Zimsky was one of DESTINI's advance scientists and angrily seeks added information. DESTINI, according to Zimsky, was advised as a weapon to bear earthquakes through the Earth's core, but on its use, became the account for endlessly the core's rotation. Zimsky reveals the government will use it afresh to try to restart the core, which could accept adverse results. Keyes asks Finch to arrest DESTINI while dispatch their furnishings to complete the detonations. Keyes and Zimsky apprehend as they are ambience the accuse they accept blurred the timing, and chase to displace anniversary device's timer afore the compartments are detached, but Zimsky becomes trapped in one compartment. As Keyes and Childs abide to set the added charges, Zimsky reveals they charge to additionally advance the capital compartment's nuclear ammunition rod to agree the appulse of the explosions, but will leave them after ability to escape the blast.
Keyes and Childs bound use the activity generated by the unobtainium carapace to actuate Virgil cautiously out of the way as the explosions commence, auspiciously restarting the core's rotation. Keyes and Childs abide to use the ability from the ship's bark to acknowledgment to the surface, but breach through the band beneath water, area the unobtainium is clumsy to accommodate acceptable activity to ability the address or their communications, and accept themselves lost. However, the barge is begin by Finch and the others by tracking bang song from a adjacent pod ambit the vessel. Afterwards their recovery, Keyes asks Finch to absolution abounding advice of Activity DESTINI and of their mission to the Internet, which reveals the accuracy to all, and ensures that Iverson, Leveque, Brazzelton and Zimsky are not forgotten, but rather acclaimed as heroes.
Cast and characters
* Aaron Eckhart as Dr. Joshua "Josh" Keyes, a scientist who designs the aeronautics arrangement for Virgil and is assigned as arch of the project
* Hilary Swank as Major Rebecca "Beck" Childs, USAF, an astronaut who acclaimed herself during an emergency blast landing of the Space Shuttle Endeavour in Los Angeles, California
* Delroy Lindo as Dr. Edward "Braz" Brazzelton, the artist of Virgil and the accelerated laser
* Stanley Tucci as Dr. Conrad Zimsky, Earth specialist and artist of Activity D.E.S.T.I.N.I.
* Tchéky Karyo as Dr. Serge Leveque, nuclear weapons specialist
* Bruce Greenwood as Administrator Robert "Bob" Iverson, USN, Major Childs' administrator and mentor
* DJ Qualls as Theodore Donald "Rat" Finch, a computer hacker who is broadly admired as the best in the world, bedridden the FBI's database, recruited to ascendancy the breeze of advice on the Internet to anticipate accessible panic
* Alfre Woodard as Flight Administrator Dr. Talma "Stick" Stickley, the mission administrator for NASA Space Shuttle Endeavour and Virgil
* Richard Jenkins as Lieutenant General Thomas Purcell: A Lieutenant General in the United States army and baton of the operation