Dingess just can't stop with the cliffhanger problems. Manifest Destiny always has these fake cliffhangers, where Dingess is teasing what ever is going to happen next and it usually is a character's intention, not an outside event. It's an interesting narrative device, but Destiny isn't character driven. If it were, such cliffhangers might make sense.
Most of the issue is good. There's a blowout between Lewis and his female assistant and it's pretty good stuff. Dingess definitely knows how to do the talking heads scenes to give them weight; they're nice and layered. Sadly, it comes right before a confusing montage. Roberts visually implies a mutiny, which doesn't correspond to the actual scene content at all.
There's some good Sacajawea action, even though it's off-screen–Dingess can't seem to figure out what to do with her.
But the series feels a little stuck… appropriate given the expedition is, quite literally, stuck.