An episode that should have been owned by Rick Grimes after the untimely death of Carl last week is actually made more interesting by a couple of supporting characters who take the lead of "The Lost and the Plunderers."
It's fine, for what it is. Well... it's not actively bad, but there doesn't seem to be much point beyond finding another arbitrary way to chop up the timelines and try and make this slow march to the grinder that much more interesting.
The format of this episode was unlike anything we've seen before on The Walking Dead, and while I wasn't a particular fan of jumping around in time, it served its purpose -- for better or worse -- in pushing the story forward.
"The Lost and the Plunderers" focuses on one character at a time, with each character getting a title card to go with their segment. This allows the episode to futz a bit with chronology, but it's mostly just window dressing on a pretty basic episode.