On last week’s episode we had Nick Jonas.

And on Hawaii Five 0 Season 4 Episode 9 we have Carol Burnett. Good thing this show knows how to use a guest star, right?

The whole episode takes place on Thanksgiving and we start at a football game with pretty much everyone (minus Kono but we will see her soon) including Kamekona, Nicky Demarco and…Grover? Danny asks Steve why the man who has not made life easy for them is there.

“Well, Danny, as announced this week in the press, Chi McBride is now a series regular so you’re going to see him in every episode.” Okay, what really happens, Steve explains, is that Grover’s family is out of town and it’s Thanksgiving so…

Steve has to leave the game and check on the turkey and finds sister Mary never quite defrosted the lovely bird. But, wait, Aunt Deb (Burnett) shows up unexpectedly, takes a moment to say she likes the specks of gray hair in Steve’s head (agreed) but not so much the tattoos on his arms (disagree, Aunt Deb!) and quickly says she’ll handle the turkey drama when Steve gets a call and has to go to work.

We’ll find out in the next scene that Aunt Deb helped raise them and even gave up a promising singing career to do so. In other words, Aunt Deb is a saint.

But, this being H50, there’s a murder and a body has been found but before we get too far into this we have Chin web camming with Kono. He tells her the bad guys have been taken care of so she’s safe…but she still has to find Adam, who she hears is in Seattle so that’s where she’s heading next.

The gang finds out the body in the barrel is that of a Secret Service Agent named Russo and, maybe a coincidence, the President is coming to the Island for a holiday visit. The dead Agent’s phone is gone and it has info on the President’s trip so we’ve got trouble!!

Watch Hawaii Five-0 Season 4 Episode 9 Online

Russo was last known to be checking out residences in the North Shore so 5-0 heads there to see what they can find. The house seems empty though a sniper bullet is found on the floor. Hearing a noise, Steve and Danny almost take out a nice neighbor lady who says she was just checking out the house. We also meet the woman’s daughter, Andrea, who has just flown in for the holiday. (Think this is unimportant? You’d be wrong!)

But who interrupts the crime solving? Aunt Deb! She reluctantly tells Steve she was busted buying weed because (grab the Kleenex) she’s got an inoperable brain tumor and is dying. She says she’ll tell Mary when the time is right. Nice family moment and Burnett still has her acting chops.

Back on the job, Steve and Danny try to get the Secret Service to cancel the President’s trip since they know the real bad guy is a guy named Barkov, a sniper who kills for a living. Air Force One is landing in two hours. The clock is ticking to find our assassin.

Aunt Deb gets out of the slammer and Catherine is there and the two head off to a beautiful spot on the beach where Deb, who knows there’s something nice between Cat and her nephew, asks her to watch over Steve/Mary and make sure they stay close. Steve also asks Danny for advice on how to deal with all this and Danny gives his BFF some good advice to enjoy the last Thanksgiving and don’t dwell on the bad stuff.

Back on the case, they find the house where Barkov has been staying and also find Moreno, his cleaner who takes care of the bodies. The guy reaches for his gun, Grover shoots him and then berates him in Grover fashion as they try to figure out where Barkov is. They do figure one thing out – the President may not be the target after all. Turns out the target is…Andrea, the daughter of the neighbor we saw earlier!

The big chase scene of the episode as Barkov finds Andrea (who is a witness in a Russian murder so they need to rub her out) and her Mom and he chases them through some woods and then the beach with our 5-0 team in hot pursuit. Chin takes out Barkov and Andrea lives. Success! Who's got the Cool Whip for the Pumpkin Pie? But first...

...the President is arriving and somehow Steve, Danny, Chin and Grover have found time to clean up, put on suits and welcome the President. The only thing you really need to know is that Danny Williams does NOT button the top of his dress shirt even for the President.

But remember, it’s still Thanksgiving and they have no turkey to eat. Deb tells Steve that she did tell Mary that her days are numbered so Steve comforts his sister saying “We’re gonna get through this.” They’ll tell Mary’s baby all about Aunt Deb and keep her memory alive. These scenes could be forced and hokey but the cast pulls all of them off really well, which is perfect for a holiday episode.

So where do we end up but at Demarco’s Tiki Bar where Aunt Deb ends up on stage and…anyone a musical theater buff who knows the song she sings? I’ll help you out – it’s “I Got The Sun In The Morning” from Annie Get Your Gun. Now how often does an Irving Berlin song end up on Hawaii Fiv

Jim Halterman is the West Coast Editor of TV Fanatic and the owner of JimHalterman.com. Follow him on Twitter.