CHICAGO (CBS) — This Sunday’s episode of “Undercover Boss” is a can’t-miss episode. The show will be centered on the Chicago institutions of Wrigley Field and the Cubs.

You don’t expect one of the owners to be slinging hot dogs. But that’s exactly what you’ll see Todd Ricketts doing -– maybe not up to everyone’s standards, though.

“He was very slow,” says Rocco Caputo, who has been vending dogs for nearly three decades. “I had to teach him to put your singles in front.”

As someone who hasn’t seen the show, Caputo did not know at the time the slow guy was Ricketts, one of his bosses. Ricketts grew out a beard and pretended to have won a reality-show contest to try out jobs at Wrigley Field.   

“I jumped at the chance to do the show because I felt like it was a great opportunity to highlight to the city and this country how great the people who work here are,” Ricketts told CBS 2’s Kate Sullivan.

Darryl Wilson also had no idea Ricketts was the man cleaning bathrooms and mopping the floor with him. But after a long day of mopping and then running the score board, it proved to be a pretty special moment for both of them.

“For Darryl’s job, I think it’s going to be really important for our fans to really what it takes with 42,000 people just left — we have to get it cleaned up and turn it around and do it again tomorrow morning,” Ricketts said. “Those guys are a finely tuned machine.”

Darryl says a little appreciation from the boss is nice.

“Everybody’s relaxed and like, ‘We know the owner,'” he says.

The show was shot over the course of one week. You can see it all on CBS 2 at 8 p.m. Sunday.