A half baked plan with the boys goes south when the intentions they all had is rather executed by one of them. Interestingly, this doesn't stop anything! They still go on, unraveling secrets and facing daring challenges.
Ravenclaws having an existential crisis. Slytherins just now realizing that everything they thought they knew is false. Hufflepuffs "trying" to stay out of everyone's way. And Gryffindor, they are just trying not to bust a gut.