Open Book and Shirt Club were part of season one, but because of the first Steven Bomb they aired after Jailbreak. The wiki wants Jailbreak to be the season ender, and it is at 52, but it was the 50th episode aired. Ocean Gem was #26, the "mid-season finale."

OK so maybe this is picky and off the thread,but its been bugging me. This episode is Season Two, Episode 12. There are definitely 52 episodes in a season.