They seem to be make a grand effort to make sure to include everything in this shortened season - a mole, torture, incredibly close calls, chase scenes (of sorts), and all the main 24 opponents are represented - Russia, China, and the Middle East. I am assuming, that the mole subplot will have something to do with China, since the husband was convicted of selling secrets to China.
I like how Jack is getting in touch with his emotions - "I probably shouldn't have tortured her, but I just hate them so much." It was like he was acknowledging that sometimes he hurts people because he doesn't like them.