Synopsis
Ultron took over this version of 2099 because an arm that our Deathlok lost in the present day (in #1) was found by Alchemax who developed from it a way of turning humans into Deathloks. Then the Ultron robot got revived and took this process and ran with it.
So in #8 Ultron defeated our team and turned them into Deathloks, leaving only our Deathlok (an alternate future version of Miles Morales) and allies Doom 2099 and Punisher 2099 to stop Ultron using Doom's time-gauntlet to go back in time and conquer humanity even earlier. Last issue they fought the Savage-Avenger-Loks and Punisher sacrificed himself to give Miles-Lok the chance to get the SA back in their own bodies.
Now our Deathlok is desperately holding off Ultron when the Savage Avengers arrive to help him, and Doom turns up to reclaim his gauntlet. Ulty throws DL at Daredevil (Elektra), and then our team have to fight off loads of *his* DLs. Anti-Venom (Flash Thompson) and Cloak have abandoned their rivalry over Dagger since Tyrone Johnson and Tandy Bowen refound their love last issue. Dagger now uses her new light-armour to deflect a blast aimed at the back of Cloak's head. Weapon H smashes a group of DLs surrounding Black Knight, who then calls on his atomic dragon-steed to blast a lot more.
The time-gauntlet has now opened a portal to the past and Ultron sees that it leads to Alchemax and the Deathlok arm. Doom attacks him but is blasted from behind by the robot's latest weapon Punisher-Lok. Meanwhile everyone else is still battling 'ordinary' Deathloks. Army-boy Flash teams up with Marine Clay Cortez - Anti-Venom's symbiote suit heals Weapon H's wounds and WH energises a big gun AV's picked up with gamma radiation. Tandy and Tyrone reaffirm their love which enables them to destroy even more DLs.
Meanwhile Elektra has headed for a particular set of holding cells and returns with the freed Avengers 2099. So Ultron responds by unleashing extra Ultron-bodies. But Dane Whitman counters by taking Ultron-Prime into cyberspace where he's cut off from controlling his Ultron-clones and BK's photonic blade can do him damage. Punisher-DL is getting the better of Doom when damaged Miles-DL gets through to Jake Gallows within to remind him how he lives to get revenge on Ultron for his murdered family. Brought to his senses he blasts the time-gauntlet to pieces.
But unfortunately the portal to the past is now self-sustaining. Miles-DL tries to reach through it to destroy his lost arm in the past, hoping to thus wipe out Ultron's reign. But it seems Ultron-Prime has got free of cyberspace and prevents him. Meanwhile the Savage Avengers and Avengers 2099 carry on battling Ultron's Deathloks and clones. As U-P has Miles Morales pinned down the ex-Spider-Man uses a web-shooter to pull his old arm through the portal to the future. As the 2 versions of his arm connect there's a blinding flash of light and Kirby dots ...
... and the SA find themselves returned to their own time through the portal, but without Miles-DL who had previously been their means of time-travel. We see him alive and in the presence of Uatu the Watcher, who it turns out has been providing a voiceover commentary for this issue. It seems that when this Deathlok had his job of defending the integrity of the timestream he was actually working for Uatu, although he didn't know it. Now his task is over and the Watcher gives him his Miles Morales/Spider-Man body back and returns him to his own reality (where he seems to have a very strong relationship with Ironheart).
'Meanwhile' in a 2099 that was never overrun by Ultron and his Deathloks human Punisher obviously remember the previous reality and has hunted down the head of Ultron and buries it in his (Jake Gallows) own grave.
And the Savage Avengers wonder whether to go their separate ways. But a sudden attack by Fin Fang Foom gives them at least 1 more battle to fight.