4x1 - The Toy

June 20, 2019

A favorite toy of Theodore's is lost on a rafting trip but then mysteriously shows up at the house, and it's alive.

4x2 - Bloodline

August 24, 2019

4x3 - Theodore's Calling

July 27, 2019

Miss Croner attempts to help Theodore discover his true calling in life.

4x4 - Clumsy Jeanette

July 27, 2019

Jeanette is suddenly the clumsiest person on the planet. Is there something wrong with her - or her new glasses?

4x5 - Adventures in Babysitting

August 10, 2019

Theodore gets roped into doing Alvin's babysitting sitting job with a spoiled four year old.

4x6 - Alvin's Assistant

August 10, 2019

Kevin agrees to be Alvin's assistant to get closer to the music industry, but ends up running errands instead.

4x7 - Mysterions

August 17, 2019

When Theodore discovers Alvin and Simon have a secret club, he promises not to tell anyone if they let him join.

4x8 - The Crow That Ate My Homework

August 17, 2019

Dave promises to take Alvin to a water park if he gets a good grade on his test, but then a crow steals it.

4x9 - Simon Says

August 24, 2019

4x10 - Sing Like a Canary

August 31, 2019

4x11 - Pirate's Life

September 7, 2019

4x12 - World Record

September 14, 2019

4x13 - Tour Bus

September 21, 2019

4x14 - Game Show

September 28, 2019

4x16 - Time Capsule

October 12, 2019

Alvin accuses Dave of yelling at him too much, so a therapist moves in; when the school digs up an old high school time capsule, Miss Smith and Dave work together to keep an old secret.

4x17 - Munk vs Machine

October 19, 2019

The Chipmunks and Chipettes team up together to compete in a dodgeball tournament. They learned that an opposing team has an unfair advantage using technology. Later on, they discovered that an enraged Theodore could be their secret weapon.

4x18 - Shack Magic

October 26, 2019

4x19 - Big Bro Theodore

November 2, 2019

When Theodore mistakenly thinks he's the oldest brother, he tries to be a better role model for Alvin and Simon.

4x20 - No Putts No Glory

November 9, 2019

4x21 - Granny Awards

November 16, 2019

Dave is thrilled when he thinks he's nominated for a Grammy, but it's actually an award for aging musicians.

4x22 - Sick Day

November 23, 2019

4x23 - The Exchange Student

November 30, 2019

4x24 - Crystal Ball Birthday

December 7, 2019

4x25 - Artsy Smartsy

December 14, 2019

Theodore helps Simon to try and get past his perfectionism in order to complete an art assignment for art class.

4x26 - The Crush

December 21, 2019

4x27 - Best in Shoe

December 28, 2019

4x28 - Royal Pain

January 4, 2020

4x29 - Between a Rope and a Hard Place

January 11, 2020

4x30 - World Day

January 18, 2020

4x31 - Allergic Reaction

January 25, 2020

4x32 - Lice-enced to Teach

February 1, 2020

4x33 - Animal House Party

February 8, 2020

4x34 - Dr. Zap vs Electroboy

February 15, 2020

4x35 - Mega Bounce Battle

February 22, 2020

4x36 - Gossip Guy

February 29, 2020

4x37 - Chimpmania

March 7, 2020

4x38 - Dad Jokes

March 14, 2020

4x39 - The Chosen Chipmunk

March 21, 2020

4x40 - Double Dangus

March 28, 2020

4x41 - The Last Day of Summer

April 4, 2020

4x42 - The Littlest Robot

April 11, 2020

4x43 - Geizmo's Day Out

April 18, 2020

4x44 - Simon Saves the World

April 25, 2020

4x45 - Sick as a Chipmuck

May 2, 2020

4x46 - Of Mice and Munks

May 9, 2020

4x47 - Life of the Party

May 16, 2020

4x48 - Instant Gram

May 23, 2020

4x49 - You Troll

May 30, 2020

4x50 - A Very Merry Christmas

June 6, 2020

4x51 - Unbored

June 13, 2020

4x52 - Episode 52

June 28, 2022