In 1989, scientist Hank Pym
resigns from S.H.I.E.L.D. after discovering their attempt to replicate his
Ant-Man shrinking technology. Believing the technology would be dangerous
if replicated, Pym vows to hide it for as long as he lives. In the present
day,[a] Pym's estranged daughter, Hope van Dyne, and former protégé,
Darren Cross, have forced him out of his company, Pym Technologies. Cross
is close to perfecting a shrinking suit of his own, the Yellowjacket,
which horrifies Pym.
Upon his release from prison, well-meaning thief Scott Lang moves in with
his old cellmate, Luis. Lang visits his daughter Cassie unannounced and is
chastised by his former wife Maggie and her police-detective fiancé,
Paxton, for not providing child support. Unable to hold down a job because
of his criminal record, Lang agrees to join Luis' crew and commit a
burglary. Lang breaks into a house and cracks its safe, but only finds
what he believes to be an old motorcycle suit, which he takes home. After
trying the suit on, Lang accidentally shrinks himself to the size of an
insect. Terrified by the experience, he returns the suit to the house, but
is arrested on the way out. Pym, the homeowner, visits Lang in jail and
smuggles the suit into his cell to help him break out.
Pym, who manipulated Lang through an unknowing Luis into stealing the suit
as a test, wants Lang to become the new Ant-Man to steal the Yellowjacket
from Cross. Having been spying on Cross after discovering his intentions,
Hope and Pym train Lang to fight and to control ants. While Hope harbors
resentment towards Pym about her mother Janet's death, he reveals that
Janet, known as the Wasp, disappeared into a subatomic Quantum Realm while
disabling a Soviet nuclear missile in 1987. Pym warns Lang that he could
suffer a similar fate if he overrides his suit's regulator. They send him
to steal a device that will aid their heist from the Avengers'
headquarters, where he briefly fights Sam Wilson.
Cross perfects the Yellowjacket and hosts an unveiling ceremony at Pym
Technologies' headquarters. Lang, along with his crew and a swarm of
flying ants, infiltrates the building during the event, sabotages the
company's servers, and plants explosives. When he attempts to steal the
Yellowjacket, he, along with Pym and Hope, are captured by Cross, who
intends to sell both the Yellowjacket and Ant-Man suits to Hydra. Lang
breaks free and he and Hope dispatch most of the Hydra agents, though one
flees with a vial of Cross' particles and Pym is shot. Lang pursues Cross,
while the explosives detonate, imploding the building as Pym and Hope
escape.
Cross dons the Yellowjacket and attacks Lang before Lang is arrested by
Paxton. Cross takes Cassie hostage to lure Lang into another fight. Lang
overrides the regulator and shrinks to subatomic size to penetrate Cross'
suit and sabotage it to shrink uncontrollably, seemingly killing Cross.
Lang disappears into the Quantum Realm but manages to reverse the effects
and returns to the macroscopic world. Out of gratitude for Lang's heroism,
Paxton covers for Lang to keep him out of prison. Seeing that Lang
survived and returned from the Quantum Realm, Pym wonders if his wife is
alive as well. Later, Lang meets up with Luis, who tells him that Wilson
is looking for him.
In a mid-credits scene, Pym shows Hope a new Wasp prototype suit and
offers it to her. In a post-credits scene, Steve Rogers and Wilson have
Bucky Barnes in their custody. Unable to contact Tony Stark because of
"the accords",[b] Wilson mentions that he knows someone who can help. |