11. Full Measure (Season 3, Episode 13)
We pick up from a shocking moment- Walt reveals his loyalty to Jesse by killing the drug dealers who executed his girlfriends kid brother- only for the whole episode to be full of climactic moments. Jesse goes into hiding. Heisenberg takes on Gus and thinks he is in the clear. Its here that we start to see how sinister Gus can be- another episode to miss out on the top 15 was the following episode, Box Cutter, where Gus has his most horrifying moment- and you feel that Jesse and Walter may have just met their match. This time, the net isnt just closing in on Walter, but on Jesse as well- and though at this point their secrets may be safe, their lives certainly arent. The Walter that we used to know snaps into life when he begs for his life and realises his swagger has got him nowhere, as it is clear that Mike is going to kill him on Gus orders. A desperate situation shows that Walt isnt all that after all. After Walt saves Jesses life, it is up to Jesse to save his- by murdering Gale, Walts replacement as Gus cook. A life has been taken, but at what cost? The moral implications in this episode and the demonstration of trust between Jesse and Walter is perhaps some of the richest in the series as a whole.