Everyone copes with radically changed circumstances.
Hank and Britt deal with the widening scope of the Lindus conspiracy as they try to avoid the rap for a murder they (technically) didn't commit.
Walt celebrates another birthday. Skyler considers her options. An associate complicates Walt and Jesse's plan.
Walt becomes obsessed with a contaminant in the lab and refuses to finish the cook until it is eliminated. A frustrated Jesse attempts to get Walt back on track.