So when Nancy and the rest of the Botwins moved to San Diego in the fifth season, I continued to watch because the core themes were carried over into the new setting. Then the season got out of control. Mexican drug lords, tunnels under pregnant women fashion stores, and coked up Cecilia.
When that season ended I had no idea where the series was going to go. Apparently a road trip was needed. So the Botwins took to the American roads on a Jesus mobile RV. More nonsense ensued. Nancy started growing hash in the washing machine in the RV. It was like my parents' forced motorhome roadtrips but on crack. Similar to my parents' roadtrips, their adventure ended in metro-Detroit.
I don't know if you could call what Weeds is doing "jumping the shark" but it sure is getting close. The season ended as expected, no spoiler alerts here, but the season finale didn't really open up much room for story development after the final scene.
Queue seventh season. Three years later, and now the Botwins are living in New York City, living the city life. I won't lie, I am enjoying the latest season, but much of it just seems contrived. Everything is working out way too well for the drug dealing family from Agrestic. With only a couple more episodes left, I expect shit to hit the fan real soon. There will probably be some kind of explosion, houses set on fire, something to get the Botwins so close to "jumping that inevitable shark" but hold back a little longer to make room for another ridiculous ninth season.