Logan and Hemmings learn that the disappearance of Logan's partner is linked to a stock buyout that could affect the future of time travel.
Hemmings travels back in time to prevent the death of Logan and Matuzek in a car bombing; guest Rena Sofer.
Logan and Hemmings visit 1939 to prevent a group of pirates from blowing up a cruise ship that would erase Hemmings' existence.
Logan visits 1989 to stop a vengeful ex-TEC trainee from stealing time-sled designs, then is public enemy number one in 2007.
A mission to 1944 Germany is unfinished, and when Logan returns to 2007, the Nazis are the winners of World War II.
Logan and Eliot Ness work together to stop the Ripper, who has joined forces with Al Capone, from retrieving his time machine.
Logan visits 1956 to prevent a stalker from killing an actress whose future son will be a U.S. president.
A rumpled detective's (William Devane) greed threatens his younger self (Joshua Devane) when Logan goes to 1977 to investigate a gem heist.
Futuristic cop Jack Logan travels to 1888 London to catch a madman following in Jack the Ripper's footsteps.