Synopsis
Last issue, after the Mighty Avengers invaded Dr Doom's Latverian castle, Victor Von Doom fell through his malfunctioning time machine with Iron Man and Sentry. They wound up in New York much earlier in the Marvel Age, and used the Fantastic Four's time machine to get back. IM and Sentry arrived back where they wanted to be, but Doom tricked them and went somewhen else.
Now we see Doom visiting Morgan Le Fey in the 13th Century, in a time that appears to me to be earlier than the 1 in #9. He asks her to teach him how to create a demonic army. She agrees, again apparently to me in return for him becoming her lover. (In the #9 scene he left her after learning what he wanted, promising to return with something from the future for her. He came back to the present at the beginning of the MAv attack.)
Now we see the remaining MAv (Ares, Black Widow, Ms Marvel, Spider-Woman, Wasp and Wonder Man) in a shattered part of Doom's castle after Iron Man and Sentry disappeared. Dr Doom assaults them with an army of protoplasmic blobs as seen on the cover. The team are quickly overwhelmed.
They awake to find themselves suspended in force fields elsewhere. Von Doom ignores them while he watches his castle through a scanner and counts down (to the return of IM and Sentry). Ms Marvel tries to rile him into the usual villain rant that reveals his plan. Instead he just insults them all individually, while thinking his plan for our benefit.
1st he recaps that his Venom virus was accidentally released during Ultron's attack on the world in #1-6. The MAv dealt with that in #7-8, and then came to arrest him for it in #9. He and the 2 heroes fell back in time, and returned last issue. He didn't want to leave IM&S back in time because they would damage his past. But he arranged for them to get back half an hour after he did. During which time he captured the other heroes and set up a trap.
As the countdown nears completion, Spider-Woman suddenly starts explosively emitting an energy Doom doesn't recognise. It frees the others and seems to dissolve the blobs. Ares attacks Doom and others start dismantling Doombots, while Ms Marvel flies to the castle to warn the returning IM&S.
We now see a replay of the last pages of last issue, but with the added bonus of knowing that something called the Doomstadt Neural Energy Swarm Drain is about to go off. Sentry flies to meet Carol Danvers as she shouts to them to escape. But the whatever-it-is explodes, presumably destroying the castle, and the Golden Avenger is caught in the blast. Which is where we left things.
Sentry gets Shellhead out of the blast area, but his armour has overloaded. MsM drains a lot of energy off, but they think Tony Stark is dead. Until he speaks to them and asks Bob Reynolds to hit him with his 'power of a thousand exploding suns' to recharge the armour. And it works.
Dr Doom is successfully fighting the rest of the team with magic, until the other 3 arrive and Sentry rips his mask off. The resulting magical(?) feedback(?) knocks Doom out, and Iron Man arrests him. He's taken into custody by SHIELD.
Epilogues:-
Stark tells Maria Hill he'll have to rebuild his armour from scratch. They wonder how Spider-Woman saved the day.
Natasha Romanoff asks Jessica Drew how she did it - it doesn't match the abilities in her SHIELD files. Jess tries to shrug it off.
Back in the 13th Century Morgan waits in vain for Victor's return.