*Did you know that there's a theory that the bacteria in our bodies actually controls our moods and may even be responsible for elements of our personalities? Tony Stark and Bruce Banner did. What happens when a 20 million-year-old evolutionary catalyst infects a Hulk? Could it be a cure?
Meanwhile, on the outside, Captains Marvel and America must find the missing scientist before he unleashes said bacteria on the world. *Source: marvel.com