M5, T13: In an effort to immortalize himself, Jimmy announces that he's putting up the world's tallest building -- a pair of office towers in the shape of his initials. But his plan faces a setback when Lisa reveals that he'll need the approval of the city's Landmark's Preservation Bureau. Meanwhile, not even a party can keep Matthew from getting depressed on his thirtieth birthday. As a result, he rebels by becoming an authentic British punk rocker. Once Lisa breaks the story of his plans on the air, the public outcry against Jimmy's project is immediate and harsh. As a result, the city revokes its permits, forcing him to abandon the project. Meanwhile, as Matthew delves deeper into his new punk persona, Dave employs some reverse psychology in hopes of getting him back to work. In an effort to restore Jimmy's dream of a legacy, Lisa proposes everything from building a bridge to creating theme park. But Jimmy's faith in himself is finally restored when he decides to build the towers anyway-- in London! Finally, Joe and Dave team up and convince Matthew to give up his punk rock stance.