John Carter (2012) Timeline Explained – Every Event in Order

John Carter is transported to Barsoom after killing a Thern in an Arizona cave during a gold-hunting expedition. The Thern was apparently using the cave as a portal between worlds, and Carter's act of self-defense triggered his sudden translocation to Mars, where the different gravitational and atmospheric conditions fundamentally alter his physical capabilities.

Foreshadowing: The cave is described as holding ancient secrets and rumored riches, hinting at its supernatural properties.

• theln
• portal
• cave
• arizona
• transported
• mars

Carter's extraordinary strength and agility result from the vast difference between Earth's gravity and Mars' lower gravitational pull. His Earth-grown muscles, adapted to heavier conditions, allow him to perform feats on Barsoom that seem superhuman to the native Martians, making him a formidable warrior.

Foreshadowing: His capture by the Green Martians highlights how unusual his physical capabilities appear to them.

• gravity
• strength
• low gravity
• earth physiology
• abilities

The 9th ray is a previously unknown solar energy source that Dejah Thoris discovers through her scientific research. She develops a weapon and technology based on this ray, which offers limitless clean energy. The Therns sabotage her invention because the 9th ray threatens their control over Barsoom's power structures.

Foreshadowing: Dejah's scientific intelligence is established early as she resists Sab Than's advances through intellect rather than mere diplomacy.

• 9th ray
• solar energy
• dejah thoris
• scientist
• weapon

Sab Than receives his devastating weapon from Matai Shang, the leader of the Therns. Shang manipulates Sab Than into believing he is the goddess's chosen ruler, using the weapon to help Zodanga devastate Helium. The Therns secretly orchestrate the war to maintain their control over both sides.

Foreshadowing: The Therns' involvement is hinted at early when their spy sabotages Dejah's invention.

• sab than
• weapon
• thern
• shang
• ZGdanga
• helium war

Dejah is pressured into the engagement by her father, who believes the marriage will end the devastating war and save Helium. Though she despises Sab Than, she accepts for the good of her people, entrusting Carter with a way to return to Earth as she resigns herself to a political marriage.

Foreshadowing: Dejah's disdain for Sab Than is established when her invention is sabotaged by his Thern allies.

• dejah thoris
• marriage
• sab than
• political pressure
• helium

The Therns manipulate both sides of the war to maintain their hidden control over Barsoom. They supply Sab Than with weapons to wage war against Helium, while secretly planning to profit from the conflict and suppress any technology like the 9th ray that could disrupt their dominance.

Foreshadowing: Matai Shang's sabotage of Dejah's invention reveals the Therns' anti-Helium stance early in the story.

• thern
• matai shang
• zodanga
• manipulation
• secret control

Carter possesses a medallion that serves as a key to an ancient mechanism at the sacred river Isus. When placed in the mechanism, the medallion activates the device, allowing Dejah to decode the 9th ray's power and discover how to return Carter to Earth. The medallion connects Carter to Barsoom's ancient civilization.

Foreshadowing: The medallion's importance is hinted at when Tars Tarkas guides them toward the sacred river.

• medallion
• river isus
• ancient mechanism
• 9th ray
• key

Tars Tarkas initially seeks to exploit Carter's abilities for his own political ambitions among the Tharks. However, after Carter proves himself in battle and demonstrates honor, Tars develops respect for him. When his daughter Sola is revealed to be protecting Carter, Tars ultimately aids their escape to the sacred river.

Foreshadowing: Tars's internal politics and ambitions are established early as he weighs whether to ally with Dejah.

• tars tarkas
• tharks
• carter
• alliance
• respect

Carter decides to remain on Barsoom because he has found purpose there, fallen in love with Dejah, and feels responsible for helping the people who have accepted him. Despite having a means to return to Earth, his connection to Dejah and his new role as a hero compel him to fight against Sab Than's threat.

Foreshadowing: Carter's bond with Dejah develops during her escape from Sab Than's forces.

• carter
• dejah thoris
• love
• purpose
• stay barsoom

After Carter helps defeat Sab Than and threatens to expose the Therns' manipulation of Barsoom, Shang uses his power to banish Carter to Earth as punishment. This exile is meant to prevent Carter from continuing to interfere with the Therns' plans, though Carter subsequently searches for Therns on Earth to find a way back.

Foreshadowing: Shang's confrontation with Carter at the river Isus establishes his antagonistic intentions.

• matai shang
• banish
• carter
• earth
• return barsoom

Carter is captured by Matai Shang after confronting the Therns' manipulations. During his captivity, he learns the full extent of the Therns' schemes. He then stages a daring escape, ultimately participating in a brutal trial among the Tharks where he must face formidable creatures to win back his place and rally their forces for the final battle.

Foreshadowing: Shang's intent to stop Carter is clear from their earlier confrontations.

• carter escape
• thern captivity
• trial
• tharks
• battle

Sab Than is defeated in the final conflict when the Tharks, led by Carter, wage war against Zodanga. Carter's forces overcome Zodanga's army, leading to Sab Than's downfall. With Sab Than defeated, the war between Helium and Zodanga ends, allowing Carter to marry Dejah Thoris and begin a new era on Barsoom.

Foreshadowing: Carter's resolve to fight Sab Than after Dejah's engagement sets up this final confrontation.

• sab than
• defeat
• final battle
• tharks
• zodanga

Edgar Rice Burroughs visits his uncle John Carter's tomb and finds it empty, which confirms the supernatural nature of Carter's journey. This encounter with the returning Carter validates the journal's account and sets up Carter's renewed mission to reclaim his destiny on Barsoom.

Foreshadowing: Edgar's discovery of the journal at the funeral established his role in uncovering Carter's secrets.

• edgar burroughs
• tomb
• empty
• return
• carter journal