Season 4 is the fourth season of Bravest Warriors. It was originally going to air in Fall 2018, but was subsequently rescheduled to premiere on December 11, 2017, before ultimately being slated to premiere on December 25, 2017 on VRV.
- Emotion Lord
- Paralyzed Horse
Season 4 was announced at the end of the Season 3 finale, Emotion Fjord with Cartoon Hangover announcing that they teamed up with Canadian animation studio, Nelvana to produce 52 more Bravest Warriors episodes that first premiered on December 25, 2017. Concept art was also at the same time. It is being animated at Portfolio Entertainment Inc in Toronto, Ontario.
- Whispers in the Morning (December 25, 2017)
- You've Grown So Tall You've Grown So Fast (December 25, 2017)
- Mirror's Reflection (January 12, 2018)
- Chained to Your Side (January 12, 2018)
- From The Inside Room (January 26, 2018)
- All I Wish Is To Be Alone (January 26, 2018)
- This Dance Ain't For Everybody (Feburary 9, 2018)
- A Few Stolen Moments (Feburary 9, 2018)
- No Need to Argue (Feburary 23, 2018)
- We Can Leave Your Friends Behind (Feburary 23, 2018)
- Sit Down Sip Some Bouillabaisse (March 9, 2018)
- Living in a Powder Keg (March 9, 2018)
- This is Not My Beautiful House (March 23, 2018)
- Footprints by the Garden Tree (March 23, 2018)
- Think I'll Miss This One This Year (April 6, 2018)
- Nothin' Stays the Same (April 6, 2018)
- I.O.U. For Your Love (April 20, 2018)
- At When the Program's Through (April 20, 2018)
- The first concept art page reveals a production worker drawing Wallow eating food on a animation tablet.
- The second concept art reveals a script for a episode. It reveals Chris wanting to go to the Scaley Williams Day Romance, competing in a couples corals and winning a trophy with Beth as they do it every year. It also reveals that Beth doesn't not want to compete with him as she has a date.
- The third concept art reveals another script for a episode revealing a new character called Chillaxin. It tells about the Warriors protecting babies as a door opens. Emotion Lord brings Chris back as they float in a star field. It reveals that Chris drank a special sauce to visit future parts of his life.
- The fourth concept art shows a green version of Danny with a skull and bones floating above his head. It shows him in 2 other unknown locations and a blank background.
- The fifth concept art reveals the name of the season premiere as "Whispers in the Morning". It shows a scene Impossibear in a pirate outfit talking to Catbug with a hat on while pointing at a direction on the Space Whale. A bunch of pirate chickens are shown as well.
- The episodes "This is Not My Beautiful House"-"Footprints by the Garden Tree" were/are aired/aired on YouTube in Friday, April 20, 2018.