We found out last week that alt-Broyles is working for Jones, and was thus responsible for alt-Lee's death (even though that's not what alt-Broyles wanted to happen). Tonight we find out why: Jones is providing essential recuperative medication for Broyles' son Chris.
By the way, there were more good alt-touches than usual tonight, ranging from a train-like board with a list of towns and areas in the New York area that have been damaged by the cross-reality contact (but are now recovering) to no black boxes on the other side (they rely on satellite telemetry) to no Sherlock Holmes there, either.
What the other side does have is alt-Nina, and this one is genuinely evil, working with Jones to destroy both worlds. Fortunately, she's in prison, where alt-Broyles winds up, after he delivers the big twist in the story by not going along with Jones, and instead turns himself in to our Broyles on the bridge.
So Jones is foiled, at least in his worst plans tonight, but he's still at large and can pick right up where he and we left off. First, however, it looks we'll be in for a good Eternal Bald Observer episode next week - one that takes place in 2036, with an EBO on a Times Square billboard and someone who looked like Olivia's niece (grown up) in the thick of the action.
What will this tell us about Jones and what he's up to now? Hard to say, but his evil doings are having some good effects, like getting our Lee and Fauxlivia together.
... Fringe 4.2: Better and Worse Selves ... Fringe 4.3: Sanity and Son ... Fringe 4.4: Peter's Back, Ectoplasm, and McLuhan ... Fringe 4.5: Double Return ... Fringe 4.6: Time Slips ... Fringe 4.7: The Invisible Man ... Fringe 4.8: The Ramifications of Transformed Alternate Realities ... Fringe 4.9: Elizabeth ... Fringe 4.10: Deceit and Future Vision ... Fringe 4.11: Alternate Astrid ... Fringe 4.12: Double Westfield / Single Olivia ... Fringe 4.13: Tea and Telepathy ... Fringe 4.14: Palimpsest ... Fringe 4.15: I Knew It! ... Fringe 4.16: Walter Likes Yiddish ... Fringe 4.17: Second Chances