In failing health, Joe's grandmother Sofia begs him to come visit her one last time for her birthday, and to bring his beautiful wife Tiffany along. Since Joe never got around to telling "Nona" he and Tiffany got divorced, he's forced to beg Mel to pretend to be his trampy ex. Soon, Joe and Mel are on the road to Jersey with Lennox and Ryder tagging along.

Once there, they meet Joe's colorful mother Gloria, his sister Theresa and the formidable Sofia. Sensing something is amiss with her grandson and his "wife", Sofia resorts to trickery to see them repair their marriage by any means necessary. What started out as a silly ruse soon makes a wrong turn, and leaves Joe and Mel confused as to where they stand with each other.

Meanwhile, Joe's nephew Marco makes the moves on Lennox. And Ryder enjoys being treated like a king until he's asked to perform a favor for the family.

The judges get some very special help from their sons, who stop by the MASTERCHEF kitchen to judge the next mystery box challenge. Then, the contestants face the daunting task of recreating one of the greatest dishes the judges ever tasted. Later, in a field challenge, the remaining five home cooks visit a ranch where they will each prepare one Southern-inspired dish as part of a special summer luncheon for local charity volunteers. After the first part of the competition, two home cooks will advance to the finals and the Top Four, while the bottom three contestants will face a pressure test that will end the competition for one home cook.

Ben finds out that his neighbor Kayla is hosting a playgroup for all of the kids in the neighborhood but is excluding Emma. Ben devises a plan to sneak Emma into the group but when Kayla busts him, he and Tucker start a rival group of their own. Meanwhile, Danny and Amy have some relationship trouble and Danny finds a permanent way to show Amy he is committed but ends up making a huge mistake.

Twelve performers took the stage last night, but only six can move on to the finals for a chance at AGT's $1 million prize.

Coming Soon...

After shooting and killing a suspect, Toby struggles with post-traumatic stress disorder (PTSD) as the IIB tries to stop an assassination.

Hank advocates an aggressive treatment plan for Don; Evan reaches out to Eddie to help Hank; Divya learns a long-kept secret.

The final four cooks will split into two teams in the next mystery box challenge, and they will prepare a three-course meal using notable ingredients from all over the United States. The winning team will be safe from elimination, while the members of the losing team will go head-to-head in a chocolate desserts pressure test that will end the competition for one home cook. Later, the judges challenge the remaining three contestants to cook with the same ingredients they used in their initial auditions, while creating an elevated and sophisticated version of the same dish. The home cooks must demonstrate how far they've come in the competition in order to earn a spot in the finale and move one step closer to winning a life-changing grand prize.

Sonya pursues a cold lead despite Marco's insistence that it's a dead end. Charlotte finds out that Ray has jeopardized her ranch.

Mack stresses over her parents' arrival for the annual Harvest Moon Festival. Her larger-than-life father, Jack "Granddad" Jessup, decides to launch a prank war against Camp Ridgefield. Marina faces a pregnancy scare and Kip comes to her aid when Greg flakes. Meanwhile, Robbie spots Sarah over at Ridgefield and is disgusted to learn that she is now working for Roger.

A flower stand owner falls in love with Doctor Zoidberg, unable to smell his unpleasant odor due to being born without a sense of smell. Their budding romance is challenged when Zoidberg has the opportunity to give her a nose transplant and restore her sense of smell.

Victoria contacts her ex-husbands to assess their relationships when she's stuck in the hospital on the day of her bachelorette party. Meanwhile, Joy and Melanie are obsessed with a man in a coma; and Elka and Mamie bring a little bit of Las Vegas to Cleveland.

The final four must crawl through a tunnel, dodge barbed wire, and slither through mud with an AK-47. With the title of Top Shot All-Stars at stake, various weapons from the season test the speed and precision of the last two competitors in this fast-paced showdown.

Coming Soon...

The guys realize that Godwin has never really asked them for a favor, even though they are all always helping each other out. Godwin asks them to help him get a hot tub, so they set out to help him pick one up. Phil and Kay teach Sadie and John Luke how to make May Haw jelly.

Holly attends her ex-boyfriend Paul's wedding and throws it into chaos. At the wedding Phil and Eden realize they're developing feelings for each other. Haskell sets his sights on the most desperate woman at the wedding.

Boyce slips back into his old habits when he returns to the studio to record a new song. Lolli and Barton step in to keep things running smoothly at the church. Stamps and Kim are conflicted about revealing their relationship.

Staff Sgt. Ty Carter, In The Valley Below

Matt LeBlanc, Sky Blu

All of the contestants from this year's competition return to take part in the last Masterclass of the season. The tables are turned though as they set a mystery box challenge for George and Gary.

Miracles and visions abound, as do secrets and lies, when Axl's quest encounters many Friggs.

News arrives that the first Rittle man has died in battle, prompting Bert to make a move on his widow. George, meanwhile, faces a moral dilemma at work.

Gavin finds himself at odds with the forward-thinking Richard during a brainstorm for the new Valco Better store. Valco could soon be down a staff member as well when a visit from Emma's dad prompts Kieran to consider moving out of Warrington.