Hope's brother comes to stay with her from New Zealand and wants to use her apartment to "crash". Unfortunately for Hope this means his "lady friend" will be staying too. To compensate for this, Josh offers to let Hope stay with him, which she does.
To Josh this offer sounds like a great idea for Hope to get to know him better, but Uncle Saul and Jesus have other ideas. They believe that Josh will be stuck in the permanent "friend" zone.
Josh and Hope stay up late talking but when they go to the bathroom to wash up, Hope flosses in front of him: this is bad news.
Josh escapes with Saul to his weekend place (an apartment on the roof) so Hope can be on her own. However, Hope thinks Josh is going away with some friend, further away than the roof!
When Hope calls Josh she sounds jealous and he believes he may have a shot after all.
Near the end of the trip he witnesses Hope crash her car (which they had joked about earlier) and rushes down to help her. This blows the whole idea of the "secret getaway".
The episode finishes with Hope not wanting Josh to see her floss, meaning he may have a shot yet.