Young Sheldon — Season 4, episode 18 watch online
Young Sheldon, season 4 episode 18 «The Wild and Woolly World of Nonlinear Dynamics»: air date May 13, 2021. Episode overview, season trailer and the cast of Young Sheldon.
Missy's first heartbreak triggers a series of events that lead the Cooper family to the brink.
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Episodes — Season 4
- 1 Episode 1 «Graduation» November 5, 2020
- 2 Episode 2 «A Docent, a Little Lady and a Bouncer Named Dalton» November 12, 2020
- 3 Episode 3 «Training Wheels and an Unleashed Chicken» November 19, 2020
- 4 Episode 4 «Bible Camp and a Chariot of Love» December 3, 2020
- 5 Episode 5 «A Musty Crypt and a Stick to Pee On» December 17, 2020
- 6 Episode 6 «Freshman Orientation and the Inventor of the Zipper» January 21, 2021
- 7 Episode 7 «A Philosophy Class and Worms That Can Chase You» February 11, 2021
- 8 Episode 8 «An Existential Crisis and a Bear That Makes Bubbles» February 18, 2021
- 9 Episode 9 «Crappy Frozen Ice Cream and an Organ Grinder's Monkey» February 25, 2021
- 10 Episode 10 «Cowboy Aerobics and 473 Grease-Free Bolts» March 4, 2021
- 11 Episode 11 «A Pager, a Club and a Cranky Bag of Wrinkles» March 11, 2021
- 12 Episode 12 «A Box of Treasure and the Meemaw of Science» April 1, 2021
- 13 Episode 13 «The Geezer Bus and a New Model for Education» April 8, 2021
- 14 Episode 14 «Mitch's Son and the Unconditional Approval of a Government Agency» April 15, 2021
- 15 Episode 15 «A Virus, Heartbreak and a World of Possibilities» April 22, 2021
- 16 Episode 16 «A Second Prodigy and the Hottest Tips for Pouty Lips» April 29, 2021
- 17 Episode 17 «A Black Hole» May 6, 2021
- 18 Episode 18 «The Wild and Woolly World of Nonlinear Dynamics» May 13, 2021