This is a decent episode; watchable, but not a standout. The pacing in the second half feels slow to me. The best part of the episode are the characters of President Lincoln and the famous detective, Pinkerton.
I've been watching this show lately in the very good blue-ray dvd release, and I notice some aspects of the show, which seem like limitations to me. For one thing, every episode that I've seen has some kind of a big fistfight involving Doug and Tony versus somebody. It gets repetitive. Why a fistfight in each show? Also: Doug and Tony are never shown shooting any of their enemies. If the bad guys have rifles--which they do pretty often--our guys never grab and use them except as clubs! It seems obvious to me the show had a rule, "Doug and Tony can't shoot any villains." Sometimes there's a sword fight, and then actually Doug or Tony can slay their opponent, on occasion. Swords OK, guns not, I guess.
Tony's characterization as an impulsive, hot-headed kind of guy is OK, but that's about all the only character trait the show gives him. Doug is somewhat more cerebral; that's his one trait. I like them, and I like the show, but their characters are limited. For one thing, they never get a chance to just confide in each other as human beings; they're constantly reacting to the time period they're dropped into. They rarely if ever get to kid around with each other, even a little. Compare that to how the main characters on the original Star Trek would interact. Usually they drop into whichever century, and bang! Right away they're caught up in--yes, you guessed it--a fistfight! Enough with the roughhousing stuff, for Heaven's sake! I wish they could have visited Leonardo da Vinci and no fistfights with anybody! I wish there had been at least some episodes that were more on the thoughtful side. The show is a bit too cookie-cutter with the predictable action (fistfight!) scenes. Maybe there should have been an episode where they went back in time and Tony had to box one of the great early 1800's bare-knuckle boxers.