After celebrating his birthday in the "Grill, Interrupted" episode, Jay is set to substitute Cam in the season 6 episode 20 of "Modern Family," titled "Knock 'Em Down," scheduled to air on April 22 on ABC. Will his tough attitude work on Cam's all-gay bowling team?

It seems the "Knock 'Em Down" episode of "Modern Family" will again focus on Jay and Cameron's relationship. Jay agrees to sub in on Cam's bowling team as they play for the finals. Cam however, knowing Jay's uneasiness towards gays, decided not to tell his father-in-law that he will be joining an all-gay league. 

Mitch and Gloria on the other hand join Haley in a party as they both feel the age clock ticking once again. The two however, are taken aback with the pre-party portion of the night.

Meanwhile, Phil and Claire find themselves enjoying their dinner with Ronnie and Amber, their next-door neighbors whom they've shared a healthy amount of bickering in the previous episodes.

Fans of the show know that Jay has always been upfront about his opinion on Cam and his son Mitchell's same-sex relationship. However, as the show developed, we saw how he had grown to love them and even shared tear-jerker moments with them in some episodes. Will "Knock 'Em Down" be one of those episodes too?

"Knock 'Em Down" will follow the "Grill, Interrupted" episode that focused on the celebration of Jay's birthday. The episode also highlighted the potential relationship of Andy and Haley that delighted the fans of the two. Their shippers will surely expect another sweet scene between them in the new episode.  

Oliver Platt of "The West Wing", Steve Zahn of "Treme" and Andrea Anders  of "Better Off Ted" will be joining the Pritchetts, Dunphys, and Tuckers in the season 6 episode 20 of  "Modern Family," entitled "Knock 'Em Down," which will air on April 22 on ABC.