After leaving his job, Marshall is given a horrific referral from GNB to an environmental law firm and decides to get even by representing Zoey in her efforts to save the Arcadian hotel. Barney feels betrayed by Marshall and the two get in a huge fight which results in their getting the entire gang banned from the bar. The girls decide the best way to get them to make up is to get them drunk; paying close attention to the effects different alcohol will have. In the end, after many rounds of different drinks Barney and Marshall make up, however the next morning they wake up not remembering any of it, and remain at odds. Meanwhile, instead of the romantic getaway they had planned, Ted takes Zoey to stay at the Arcadian for the night to prove that this run down rodent infested building is not worth saving. Zoey tries her best to endure it, but ultimately admits to Ted that she grew up at the Arcadian and it is a part of who she is. All making sense to him now, Ted decides to support her in saving the Arcadian.