So, yes, the editing error at the start, showing us Tess (Jamie Ray Newman) breaking up with Carter (Colin Ferguson) as part of the recapping, confused me as we started, but otherwise, how terrific. Granted, I am a big history and historic reenactment geek, so both the theme of founder's day and the time travelling were right up my alley, but it was also so perfectly done.
The episode itself, introducing the brilliant Dr. Trevor Grant, played by the charming James Callis, gave us the proper sense of stress and danger which we expect from Eureka, as well as the solving of problems. Yet, it also set up an entire season. Allison (Salli Richardson-Whitfield), Jo (Erica Cerra), Henry (Joe Morton), Fargo (Neil Grayston), and Carter are the only ones who remember the original timeline. Allison is blessed with the return to a son who is suddenly and miraculously not autistic, Jo and Zane (Niall Matter)'s relationship, which peaked in a proposal which Jo didn't quite manage to accept, has suddenly disappeared entirely, Henry has found himself married, and Jack, after having shared a passionate good luck kiss with Allison, finds that he and Tess are still happily together.
How will things move forward, what will happen, can they change things back to the way they were, and do they even want to?