Another Flip for Dominick (1982)

Now a respected teacher of temporal observers, Dominick has not visited the past for several years. He is content with his lot, resigned to the idea that he will never again see Jane, the lover he left in 1980, or their son. Then his boss gives him a new mission: to find out what has become of one of Dominick's students, Pyrus Bonnington, who has gone missing in 1982.