Season 4, yes! I'll be with the Nathan James crew as we sing sea shanties.
Now onto this weeks episode, we're introduced to the new President, who curiously has been unseen up to now despite having been the Vice President and was previously the Mayor of St Louis. I definitely get the impression there's something shady going on with him, though admittedly my opinion might be influenced by certain story elements I know are on the way from the Comic Con trailer. Although, based just on what was in the episode, it certainly seems as though Elisabeth Rohm's character is becoming the power behind the throne so to speak.
We finally start getting answers in the Asia storyline as it seems the reason the cure didn't work in Japan is because Peng launched a bio-weapon rendering the cure inert, and he apparently has a master plan to use this across Asia, possibly even the world. BTW, does anyone else get the impression Peng is gay? I don't recall off-hand exactly what it was, but there was something that set off my gaydar a few weeks back, but this week seeing him stroke his general's face after he slapped it was definitely odd.
Also, something I noticed for the first time this week, it seems the characters in St Louis are calling Kara "Commander Greene" which would mean she is still in the Navy. If that's the case, why hasn't she been wearing a uniform this season?