The second episode of this final season is, for the most part a fairly standard one. There is still the odd moment of "why don't they?" but mostly it made sense and progressed the three strands of the story nicely.
At the top of the ravine, Judy (Taylor Russell) finds the lost NASA vehicle and, in suspended animation, the captain Grant Kelly (Russell Hornsby). Back at camp, Robot (Brian Steele) has gone missing and, whilst looking for him, Penny (Mina Sundwall), Will (Maxwell Jenkins) and June Harris (Parker Posey) discover a system of caves that have evidence of life on the planet. Reinspired, Maureen (Molly Parker), John (Toby Stephens) and Don (Ignacio Serricchio) head back to the planet to locate the body of "scarecrow" to reboot and use him to get to Alpha Centuri.
The adult's storyline in this episode is probably the most fun. Don provides a lot of decent comic relief as they go to retrieve the body, only to discover that Scarecrow is, in fact, fully operational. This leads to a fun little scheme to try and recapture him before a twist in the robot's capabilities changes the storylines a bit.
The biggest action moment is in the NASA buggy's chase through an asteroid storm, which looked good and was fun - but seems to stop for no particular reason once the big dramatic moment happened. This story line also has the weirdest bit of logic for me though, as to why they aren't waking up the rest of the crew, in a sterile environment, which presumably has some medical facilities. Instead they're hauling three heavy boxes away, which they'll have to get down the ravine, somehow.
As I say, a fairly standard episode of the show, which since the first season has meant that it's been good.