At school, Lisa befriends a boy named Michael, who happens to be the son of mob boss, Fat Tony. Fat Tony is put out of commission by a rival family, and Homer and Bart get involved with the mob, when Michael, who is nothing like his father, is not interested in the family business.

A deadly bus crash is caused by a suicide jumper. The bus was carrying passengers from The Hill back from a Patriots game. Michael tries to figure out a way to use this to his advantage with Freddie.

When Mack's high school wrestling rival Roarke Monaghan (guest star Corin Nemec "Stargate SG-1") returns to Milford as a successful, high profile lawyer, Mack takes him on in a re-match to finally set the record straight.

When Stan tries to trick Steve into attending summer camp, things go horribly wrong and Steve ends up in a refugee camp. However, Stan, being the eternal optimist, joins Steve and manages to stage a camp Olympics between the refugees and the rebel faction living across the river.

Stewie becomes obsessed with Lois after she saves Rupert, although Lois doesn't take to the "new" Stewie all too well. Meanwhile, Peter thinks his doctor is molesting him when he undergoes a prostate exam.

A young waitress is killed in her car and the only suspect the police have is the bus boy, an illegal immigrant from the Philippines, who doesn't speak a word of English. Cooper and Skip take the case, but Cooper gets arrested for slapping his client.

"Lambs to the slaughter here". - Marcia Donnelly

Four West Baltimore boys wrestle with what to do with the rest of their summer vacation as the new fall school year approaches. Bodie deals with his corner running slower than usual so he decides to take on a runner. Marlo believes he has finally solved the problem that Stringer could never figure out. Freamon, Greggs, and Sydnor go to Pearlman to see if she will issue City Hall subpoenas. Meanwhile, the mayoral race heats up as Mayor Royce and his primary challenger, Tommy Carcetti each hit campaign trail. Prez begins preparing for his new career in higher education, while McNulty ends up turning down a promotion.

The case of a missing girl hits a nerve with Leo. Also, Angela learns more about the mysterious bond shared between her mom, Lydia, and her boss, Gene; and she gets rattled by Dylan's unexpected declaration of love.

The Ventures are invited to a White House state dinner in honor of Colonel Bud Manstrong. But they are (mostly) unaware of a fiendish plot to assassinate the President, and only Lincoln's Ghost can save them!