S01E01 A Rip in Time
Logan goes back in time to 1888 in London to keep the faux Jack the Ripper from changing the future. He discovers that the faux Ripper's plan is not to repeat the original path, but...
Logan goes back in time to 1977 in New York to discover where a jewel theif hid the jewels. The detective who put the jewel thief away goes into his own past when he was 30 years younger. His younger self has not yet faced the jewel heist.
Jack Logan is a time traveler from 2007 who hunts down rogue travelers and brings them to justice before they can alter the past.