Present day Hank Pym gets a message from Past-Pym telling him he hid some code in Ultron and then forgot about it. For important reasons.
The Avengers fight the Intelligencia (I think this was Avengers #12.1) and then Ultron appears and starts Ultronning and they fight him instead. Hank tells Iron Man to just hold onto Ultron while he hacks him but Ultron is onto this and monologues about Hank being too stupid to beat Ultron this way.
Ultron is beaten this way.
Wolverine dicked around with time too much, so time explodes. Time is now very unstable in the Marvel universe, and there are tears in it, and in other universes.
Through one of these tears Angela has fallen into the Marvel U and is pissed off about it.
Through another one of these tears we see the Ultimate Universe, and Galactus has fallen into it. This is the plot of the 'Hunger' miniseries.