Breaking Bad‘s second season, like its first, went by far too quickly. The season finale airs Sunday night (10PM ET, AMC), and co-star Aaron Paul says it ends with a wicked cliffhanger. Any guesses? It certainly isn’t looking good for Paul’s Jesse or Emmy-winner Bryan Cranston’s Walt, whose relationship has been spiraling along with their own personal lives.

By the way, the AMC Website offers full episode videos of the entire season, meaning a Sunday afternoon catch-up marathon might be in order.