Modern Family Sneak Peek: James Marsden episode

"Slow Down Your Neighbors" - Claire becomes a determined neighborhood vigilante hoping to catch and stop a menacing car that speeds though their streets. Meanwhile, Phil is busy trying to land an important listing with a difficult client, Jay teaches Manny how to ride a bike -- only to learn Gloria needs lessons too -- and Mitchell and Cameron stumble upon a mysterious neighbor who is quite the charmer, on "Modern Family," WEDNESDAY, JANUARY 5 (9:00-9:31 p.m., ET), on the ABC Television Network.