Sam Robinson makes an unexpected return to Hartley High as a substitute teacher. Sam insists she's back to focus on her career and that anything she had with Rivers in the past is over. Deloraine wants to believe the former is true while Rivers hopes the latter is not. When Con skips classes to looks after his business interests, Roberto volunteers to help Con run the Shark Pool but he alienates the customers when he raises the prices. Effie does not know how to respond to Bart's request for a kiss.
