8. 316 (5x6, Jack)
Episode highlight: Jack visits his grandfather
#2: Jack and Kate, if you like that sort of thing
7. Jughead (5x3, Desmond)
Episode highlight: Charles Widmore was an Other?
#2: There's a hydrogen bomb on the Island...hmm, I wonder if that might be important later.
6. Follow the Leader (5x15, Alpert)
Episode highlight: Locke intends to kill Jacob.
#2: Locke tells Richard to tell him that he needs to die.
5. Whatever Happened, Happened (5x11, Kate)
Episode highlight: Hurley and Miles debate the rules of time travel.
#2: Richard takes Ben to the Temple
4. The Variable (5x14, Faraday)
Episode highlight: Faraday is shot in the back by his own mother.
#2: Widmore admits that it was he who fakes the wreckage.
3. Dead is Dead (5x12, Ben)
Episode highlight: Ben meets the Monster in a tunnel under the Temple in the form of Alex. Yeah.
#2: Flashbacks to key moments in Ben's life.
#3: The introduction of the question "What lies in the shadow of the statue?"
2. This Place is Death (5x5, none)
Episode highlight: We finally see what happened to Montand's arm...and the rest of the travails of Rousseau's team.
#2: Locke meets Christian again as he turns the wheel.
1. The Incident (5x16, Jacob)
Episode highlight: Jacob has a fish breakfast and a terse conversation with Black Robe
#2: Locke's body tumbles out of the box and fake Locke and Ben confront Jacob.
#3: Jacob visits (and touches) various Lostaways throughout their lives.
#4: The familiar end card we all know is inverted from black to white.