In the tradition of great westerns, Walt, Jesse, Mike, and Todd (the new edition to the crew who spotted the nanny cam in an earlier episode) rob a train to gain a flood of methelmine. The robbery takes place in an open area of New Mexico desert and a combination of tracking and point of view shots make it feel like a classic movie robbery.
One of the most shocking moments of the season so far happens at the end of this episode. Todd shoots a little boy riding his dirt bike, because he witnesses the robbery. He does it without thinking. The same boy riding his bike opens up the episode. We watch as he gathers a tarantula into a glass jar. At the end of the episode, the tarantula is still crawling around and waiting for a possible escape.