Batgirl has found the international terrorist-for-hire code-named Alpha--and he has amnesia! Her quandary: can she help him remember enough to find and defuse a nuclear bomb before he recalls why he set it in the first place?

Both Batman and Batgirl have discovered that Alpha has brought a cold fusion bomb to Gotham City, and Batgirl must work with the amnesiac Alpha to discover and disable it. They find it on the city limits, but as they do, Alpha remembers who he is. However, Batgirl reveals to him that she is the girl raised by Alpha's mentor Cain, proving that people can change, and Alpha deactivates the bomb and takes up a life as Michael Sommers once more.