The Tomorrow War (2021) Timeline Explained – Every Event in Order

The time travel mechanism only allows sending people to the future if they are already dead by the time the war begins in 2048. This prevents paradoxes, if someone from the past traveled to the future and died there, they would have already changed their timeline. Charlie and Dan figure out during basic training that all draftees must be individuals whose deaths occurred before the war started, making them 'available' for temporal displacement.

• time travel paradox
• draftees
• future war
• charlie

Colonel Muri Forester is Dan's grown daughter from the year 2051. When Dan travels to the future, he learns that his future self, after losing his job, abandoned his family and died in a car accident in 2030. Muri was born before these events and survived to become a colonel leading the fight against the Whitespikes.

• muri forester
• dan forester
• daughter
• colonel
• time travel family

Colonel Muri is killed by the captured female Whitespike during the attack on the oil rig near Port Nelson. As the Whitespikes breach the base, the female creature breaks free and strikes her fatally. Dan witnesses her death and is then transported back to the past while holding the toxin they developed.

Foreshadowing: Earlier, Muri mentions the female Whitespike is more elusive than males, foreshadowing its danger.

• muri death
• colonel
• oil rig
• whitespike
• female

The Whitespikes are not aliens but bio-engineered organisms. While exploring a downed spacecraft on Komsomolets Island, Dan and his team discover they were likely created as a planet-clearing weapon or as livestock for another alien civilization. The creatures have been dormant on Earth since the Millennium Eruption of 946 and are awakening due to global warming.

• whitespikes origin
• aliens
• bio-engineered
• spacecraft
• komsomolets island

The Whitespikes have actually been on Earth since 946 AD, dormant underground following the Millennium Eruption. They are awakening in 2048 because rising global temperatures from climate change are melting the ice sheets that have kept them frozen for over a millennium. This is why the invasion appears to start in 2048 but the creatures are actually ancient.

Foreshadowing: Dan and Emmy theorize the Whitespikes may have arrived long before 2048 due to the climate connection.

• whitespikes 2048
• global warming
• millennium eruption
• climate change

Dan and Muri work together on the oil rig to develop a toxin specifically designed to kill Whitespikes. When injected into dormant Whitespikes inside the alien craft, the toxin successfully kills those specific creatures. However, it awakens other dormant Whitespikes in the process, leading to a chaotic battle.

• toxin
• whitespike solution
• muri
• oil rig development

Dorian, who is terminally ill with cancer, volunteers to stay behind and detonate explosives to destroy the Whitespikes. Knowing he is already dying, he chooses to use his remaining life to eliminate almost all of the Whitespikes, giving Dan, James, and Charlie a chance to escape and pursue the final female.

• dorian sacrifice
• cancer
• whitespike explosion
• final battle

During the Whitespike attack on the oil rig, the Jumplink is destroyed in the chaos. When Dan returns to the present, he discovers the Jumplink is nonfunctional, causing worldwide panic as it becomes clear humanity cannot easily travel to the future for reinforcements or additional toxin production.

• jumplink destroyed
• oil rig
• time travel device
• future war

Dan travels to Komsomolets Island in Russia after theorizing with his wife Emmy and friend Charlie that the Whitespikes may have arrived on Earth long before 2048. The team, including Dan's estranged father James and soldier Dorian, investigates and discovers a downed alien spacecraft containing dormant Whitespikes.

• russia
• komsomolets island
• alien ship
• whitespike discovery

Muri tells Dan that his future self, after failing to secure a job at a prestigious research center (similar to his 2022 disappointment), becomes disillusioned with life and ultimately abandons his family. He dies in a car accident in 2030. This revelation motivates Dan to change his path and prioritize his family.

Foreshadowing: Early in the film, Dan's disappointment at not getting the research position sets up this future outcome.

• dan future
• family abandonment
• 2030
• job loss
• muri warning

The draftees' drop location in Miami Beach is miscalculated, resulting in them landing in the wrong area. This error leads to a high casualty rate among the new draftees, with many being killed immediately upon arrival before they can even engage the Whitespikes.

• miami beach drop
• miscalculated
• casualties
• basic training
• draftees

Dan injects dormant Whitespikes with the toxin, which kills them but awakens others. Dorian sacrifices himself to destroy almost all the creatures. Dan, James, and Charlie then pursue and presumably kill the last female Whitespike. With the threat neutralized, Dan returns home determined to heed Muri's warnings and avoid repeating his future mistakes, ultimately saving his family's future.

• movie ending
• war prevented
• family reunion
• future changed