When Susie the Sousaphone joins the band, she tells the Jazzberries about the fun of playing in parades. Hearing this, the band decides to stage a marching performance, which accidentally leaves Ella out. She can’t march with her bandmates because she has WHEELS!

Billie tries to teach the band some new dance moves, but refuses to slow down her own dancing long enough for the other Jazzberries to learn them. When Wills the Fiddle joins the band, he challenges her to a tempo duel. Which is faster – his fiddling, or her dancing?

Billie has been practicing her new solo so that it would be ready to play for her dad, Elmore the Steel Resonator Guitar, when he comes to visit. But when he arrives, he is so excited about being part of a band that he forgets to spend any alone-time with Billie.

In honour of the 100th birthday of the House of Jam, Billie and Ella have written a new birthday song but can’t agree on how to play it. Billie wants to play it loudly because the House of Jam is where she likes to rock out. But Ella wants to play the song softly because the House of Jam is her home where she feels safe and secure.

Billie is doing her best to clean up the House of Jam before Mike the Reporter arrives to interview her. When Xavier the Xylophone loses his keys in the ventilator system, the band is forced to search the place from top to bottom, trying to find his keys in time for their big performance.

When Billie’s biggest fan, Annie the Handfan, is invited for a backstage tour of the House of Jam, the Jazzberries ask her to join them on stage for their big performance. Annie’s not so sure as she isn’t a musical instrument, and Billie doesn’t like the idea either as she prefers for fans to stay fans.

When Ella’s cousin Herbie the Synthesizer comes to visit, he tries to convince the Jazzberries to try new ways to play themselves and develop fresh new sounds. Worried that they might be losing their audience, the Jazzberries give it a shot. All but Ella who really likes the way they sounds.

When the Jazzberries get some free time, most of them use it to rest up for the night’s performance. But not Louis. Louis fills the time by catching up on his chores. As a result, when everyone else is rested and ready for the show, Louis is dangerously exhausted. And crabby!

When Monica the Harmonica joins the band, she brings with her a very catchy tune that she cannot stop playing without being struck by bad luck. One by one, the other Jazzberries catch it as well. How will they be able to perform for their audience if they can’t get rid of the Forever Song?

Whenever the Jazzberries tries to rehearse for the Masquerade Ball, they find themselves interrupted by ghostly noises. Could it be that the House of Jam is…..HAUNTED? Determined to find out the truth, RC leads his bandmates on a search for whatever is truly causing the sounds. Even if it is a g..g..g..ghost!

When Woody the Clarinet can’t make it, he sends his sister Bonita to play with the Jazzberries instead. The Jazzberries expect a great improviser like her brother, but instead she will only play what is written down on the sheet music. If they can’t convince Bonita to try improvising, they’ll need to notate all their music by showtime!

When the Jazzberries get into a big argument, RC wonders if it might not be time to break up the band! This gets everyone thinking about how they all came together in the first place. But will that be enough to save the Jazzberries.

Preparing to receive the Bandleader of the Year Award has Louis very anxious, so the Jazzberries call on the extremely laid-back Lebowski the Ukelele to come and show him how to relax. But how can Louis maintain his cool when they discover that Lebowski doesn’t believe in tuning himself?

Lars the Double-necked Guitar needs power to play, but the huge light show Billie has prepared has blown the House of Jam’s generator.

RC works to hide the truth from the Jazzberries when Flash the Turntables uses a sample from an embarrassing song he had hoped to never hear again.

A pair of Alien Castanets inadvertently join the jam after Billie mistakes their spaceship for a disco ball. Buddy makes it his mission to communicate with them, though they speak only by clacking.

Louis is shocked when their neighbor, Sal the Trumpet turns down an offer to join the jam and becomes driven to find out the reasons why.

The Drum Brothers return from a drum swap with another band, but find that the Jazzberries seem to have fallen in love with the Bongo Twins who took their place.

When the Jazzberries each discover they are missing something, suspicion falls on Tesla the Theremin, a magician whose specialty is making things disappear.

After bragging about her enormous repertoire, Ella is horrified when the Jazzberries select a song she doesn’t know for their upcoming show.

Krupa must decide whether or not to leave the Jazzberries when he gets an offer to appear as permanent sidekick on Mike the Reporter’s talk show.

Billie struggles to teach Kaz, the Kazoo with a short attention span, about music in time for her performance that night.

With Louis’ mom coming, the Jazzberries prepare to play her favourite song, but when Juan the One-Man Band keeps suggesting different genres, no one can agree on what might be the best way to play it.

Princess Persephone the Harp joins the jam, but alienates everyone with her demanding and diva-like ways. Will they get it together in time for their Royal Command Performance, or will the Princess end up performing all alone?

When noise from a new trolley line interrupts performances, the Jazzberries want it gone. It was Ella’s hard work that brought the trolley, however, and she is not giving it up without a fight.

When founding Jazzberry Angie the Voice visits, everyone assumes she is coming out of retirement, but they are shocked when she notifies them that they are being kicked out of the House of Jam!