Against all enemies - Alex Irvine

Stark Industries has developed a technology to detect the alien Chitauri using on-the-spot DNA screening. The American defence department intends to make the technology widely available, but someone in the government puts a stop to it.

Captain America sees the government's suppression of the Stark technology as evidence that the people making such decisions are themselves compromised. Using as his model Franklin D. Roosevelt's executive orders during World War II, he begins to gather power to himself and those Ultimates and government officials sympathetic to his authoritarian approach so that power can be concentrated in the hands of those capable of taking quick and decisive action.
Hank Pym, who desperately wants back on the Ultimates team, has been feverishly working with his ants in the hopes of finding something that will help defeat the Chitauri. When his ants attack one of his research assistants, who turns out to be a Chitauri, Captain America resolves his differences with Pym and the new team begins work on what they call Operation High Hopes.