Pursuit(1972)

The ultimate weapon is about to be unleashed!

When government agent Steven Graves investigates political extremist James Wright, he uncovers a diabolical plot to blast lethal nerve gas into San Diego during the Republican Convention. What's worse, a computer hacker has provided Wright with a psychological profile to help him outwit Graves. As Wright ingeniously eludes Graves, can Graves find a way to stop him before the ultimate nightmare begins?