After a mysterious buyer purchases every ticket for the KPOP concert Lisa wants to go to, the Simpsons have to figure out the identity of this evil ticket reseller. Or do they? (Yes, they do).

When Principal Skinner discovers that one of his students is a runaway who has been living in the school library, he has to take the snarky, difficult kid into his home and is forced into a role he never expected or wanted - being a parent.