Weekenders Adventures of Terminator: Salvation is the another Weekenders/Terminator crossover film made by Sonic876. It is a sequel to Weekenders Adventures of Terminator 3: Rise of the Machines.
In 2003, Dr. Serena Kogan (Helena Bonham Carter) of Cyberdyne Systems convinces death row inmate Marcus Wright (Sam Worthington) to sign over his body for medical research following his execution. One year later, the automated Skynet system is activated, begins to perceive humans as a threat, and eradicates much of humanity with nuclear weapons in the event known as "Judgment Day".
In 2018, nearly fourteen years after Judgment Day, John Connor (Christian Bale), leads an attack on a Skynet base, where he discovers human prisoners and schematics for a new type of Terminator, incorporating living tissue. He is the only survivor of the assault after the base is destroyed in a nuclear explosion. Following Connor's departure, Marcus emerges from the base's wreckage and begins walking toward Los Angeles.
John returns to Resistance headquarters, located aboard a nuclear submarine, and tells General Ashdown (Michael Ironside) of his findings. Meanwhile, the Resistance has discovered a radio signal believed to have been an order to shut down Skynet's machines. Working on this intelligence, the human militia plan to launch an offensive against the Skynet base in San Francisco in four days; a response to an intercepted "kill list" created by Skynet with a plan to terminate the Resistance's command staff. John Connor learns he is second on this list, following Kyle Reese. The Resistance leaders are unaware of Kyle's importance, but John knows Kyle will eventually go back in time and become his father. John returns to base and meets with his pregnant wife Kate (Bryce Dallas Howard) and second-in-command Barnes (Common).
Arriving at the ruins of Los Angeles, Marcus battles a T-600 Terminator and is saved by Kyle Reese (Anton Yelchin) and a mute child named "Star" (Jadagrace Berry). Kyle tells Marcus about the war between humanity and Skynet. Hearing John's radio broadcast, the three leave in search of others in the Resistance. They survive an attack at a gas station; yet Kyle, Star, and several other people are taken prisoner.
Later, two Resistance A-10 airplanes are shot down while trying to intercept a machine transport. Marcus locates downed pilot Blair Williams (Moon Bloodgood) and they make their way to Connor's base, where Marcus is wounded by a magnetic land mine. Attempting to save his life, the Resistance fighters discover that Marcus is, indeed, a cyborg, with mechanical endoskeleton and a partially artificial cerebral cortex. Marcus, however, believes himself to be human, but John thinks that Marcus Wright has been sent to execute him and, therefore, orders him to be killed. Blair helps Marcus escape; during the pursuit, Marcus saves John's life from Skynet's hydrobots and the two make a bargain: Marcus will enter Skynet's headquarters in San Francisco, to help John rescue Kyle and the other prisoners, if he lets him live.
John pleads with the General to delay the offensive attack, but Ashdown refuses and relieves John of his command. However, the Resistance forces disobey Ashdown's orders, and instead await John's signal. Marcus enters the base, interfaces with the computer, and disables perimeter defenses so that John can infiltrate the cell block and release human prisoners. Marcus learns from Skynet (which assumes the form of Dr. Kogan on a screen), that he was created and built in order to lure John to this base; when the Resistance launches its attack, John will be killed, achieving the goal that Skynet had failed to accomplish so many times before. The radio signal that the Resistance received is revealed to have been a ruse, and Skynet uses it, to track down and destroy the command submarine with the Resistance's leaders aboard.
Marcus tears out the hardware linking him to Skynet and assists John in battling the new T-800 (Model 101) Terminator. Marcus is soon outclassed in strength and even temporarily disabled until John revives him, but John is mortally wounded during the fight. Marcus jumps the T-800 when it is distracted and defeats it while John succeeds in destroying the Skynet base by rigging together several Terminator fuel cells to explode; and detonates them as he, Marcus, Kyle, and Star are airlifted out. Kate attempts to save John's life, but his heart is too badly damaged. Marcus offers his own heart for transplant, sacrificing himself to save John. Recovering, John radios to other Resistance fighters that, although this battle has been won, the war is far from over.
- Sunset Shimmer, Ash Ketchum, Pikachu, Misty, Togepi, Brock, Littlefoot, Cera, Ducky, Petrie, Spike, Shido Itsuka, Kotori Itsuka, Tohka Yatogami, Yoshino and Yoshinon, Reine Murasame, Origami Tobiichi, Mana Takamiya, Doraemon, Noby, Sue, Ace Goody, Sneech, Big G, Riruru, Pippo, Lulli, Roboko, Sophia, D-Team and their Dinosaurs, Alpha Gang and their Dinosaurs and The Bakugan Battle Brawlers and their Bakugan guest stars in this film.
- The storyline concludes in Weekenders Adventures of Terminator: Genisys.