To'hajiilee is a non-contiguous section of the Navajo Indian Reservation, located in New Mexico. The word comes from the Navajo phrase "tó hajiileehé", meaning "where people draw up water by means of a cord or rope one quantity after another."
To'hajiilee is the Native American reservation where Walt buried his money and where he and Jesse first cooked meth in Pilot (2008).
This is the first time that Walter Jr. and Saul share a scene.
In the exterior shot of Saul next to his car as it's being washed, a Saul Goodman billboard is visible in the distance.
After intercepting the phone call that Andrea makes to Jesse after Walt's visit, Hank smirks and says "Nice try, asshole,." In Rabid Dog (2013), Jesse said the same line on the phone when he calls Walt from a payphone after changing his mind when he spots (what Jesse believes is) Walt's "accomplice" at the Civic Plaza meet.