Mim takes the notes into the bathroom and tries to flush them down the toilet. The toilet overflows and fills the whole bus with the contents of the sewage tank.
This is the first time we see Mim go into one of her episodes. She takes her "war paint" and trsansforms in the bathroom.
When she comes out of her episode she wakes up in the bathroom finding that the bus had tipped. Everyone is injured and the firefighters are cutting through the bus. Mim see's that Arlene, her new best friend, has died.
Mim takes Arlene's secretive box from her bag and decides that she will make a pit stop where her nephew lives. She see's that her nephew's name is on the bottom of the box and Mim is going to return it.
Next we are in a hotel room where the remaining members of the bus ride are staying. Here we find out that Mim's dad only called her phone once and she's been gone overnight. Her stepmom had called fourteen times.
In the morning, the bus goes to a dinner for lunch. Mim heads to the bathroom in the dinner to freshen up. In the bathroom she is sexually assaulted by Poncho Man.