Back on track This is probably the only "storyline canon" episode we're going to get this season. Thankfully it was solid, and thankfully they placed it after a few turds. We needed a win. They filled in a LOT of old canon threads from season 2, although it was a bit rushed being crammed into a single episode. Some other reviews seem to think there's holes that make no sense, but my canon nerd-o-meter caught none of that, so there's probably some people who just couldn't keep up with the hastiness.
There's some hope now for the last 2 episodes, but I wouldn't be surprised if this episode turns out to be the peak of the season. I think too many resources (writers especially) are being diverted or lost to other projects. It's a shame. But hey, let's just enjoy this one, I guess. RICK AND BIRD PERSON, A HUNDRED YEARS!