Chuck and Sarah are on a double date with Ellie and Caption Awesome and he suggest that they relationship ridiculously slow. A man collapes outside and Ellie and tends to him, Chuck soon flashes on Mason's ID and freaks out. Sarah informs Chuck that it's time they spent the night together.
Lou (Rachel Bilson guess Stars) comes into Buy more and asks Chuck to fix her phone, she comes back the next and they Interact until Sarah comes in to the Picture, Elsewhere Big Mike tells Morgan to get a gift for Harry's Wife.
So it's time for Chuck and Sarah to make Love, a man with a truth poison visits Ellie and puts a listening device behind her ear, Ellie starts getting the full affects of it and spills some beans about Chuck, she soon collapes.
Ellie now needs an antidote, Chuck graps the device and tells that the codes are still on Ellie at the hospital, so Riordan will come to them. Sarah and Casey hatch a plan in catching him but to avail has gets away, the poison falls to the floor and the fumes spreads and Truth comes out.
Sarah graps the anitdote and wants Chuck to take it but he gives it Ellie. The three of them get to Riordan loft and take him out, before taking the antidote Chuck asks Sarah if their relantionship is going anywhere, she says No.
Chuck goes to see Sarah the next day in which he ends their fake relationship and hangs out with Lou