The narrator's little brother replaces him and takes over his reading, and Henry has to survive and become obsess when a speaker warns everybody about the danger of germs, but can he find out that if the Germs are actually kind in time for his cartoon to return to normal?
- The Narrator's Little Brother (As the Narrator's replacement)
- Kids (Who saw the file of the Lost Episode)
- Annie and Clarabel
- Thomas and Friends Children
- Teacher (But male version)
- Gem Jessica (debut)
- the Germs (Evil) (debut)
- Sir Topham Hatt
- Mail Carrier
- Bill and Ben (Non-Speaking Cameo)
- The Breakdown Crane
- Stanley (Non-speaking)
- Stephen (Non-speaking)
- Whiff (Non-speaking)
- The Germs (Nice) (debut)
Mentioned on the chalkboard
- COVID 19 (Engine)
- Den and Dart
- Donald and Douglas
- Sir Handel
- Peter Sam
- Diesel 10
- Class 40
- Mighty Mac
- Mr. Bubbles
- Arry and Bert
- Hank (Mentioned later until Series 27)
- Ryan (Until Sodor's Legend of the Lost Treasure)
- Samson (didn't appear until later episodes)
- Scruff, Spencer, Porter, Den and Dart didn't appear but were on the chalkboard drawing with the COVID 19 Membrane Engine.
The narrator's little brother says the he's sick so he'll be taking over the story, starting with turning everything from a cloudy day to a beautiful sunny day by saying it, the Kids found a video file in 2014 on the Thomas and Friends Wiki, they were forced to give it a swift click, and the intro is okay.
and then it skips the Island intro and went straight to the title card which reads "Henry and the Germs" the narrator says it was almost flu season on the island of Sodor and the children of middle school are talking excitedly, the Male Teacher wants to tell the class what this is, Thomas mentions that Scruff, the Scruncher is hauling a freight car with a corona virus or COVID 19 Membrane engine on it, while Spencer, Porter, Den and Dart having a race to the docks, and the teacher has a special guest to help them avoid the sneezing and sniffling etcetera he says "Please welcome Sodor's Germaphobe, Germ Jessica!" one of the kids said Who in the world is Germ Jessica?" 'til Germ Jessica shows up out of nowhere tells them the danger of Germs, which terrifies Henry saying the word plank and flushing the toilet will be a germ geyser, and after she says "Wash your hands and stay home in case your sick!" Henry does the same scream as Theodore from Alvin and the Chipmunk episode "Germs" but low pitch of 10, then a time card pops up reading "5 hours of sickness later!" everyone was coughing and sneezing and the Narrator's little brother said "Then, there was trouble, a kid hit Henry with sneeze droplets" then Henry wasn't hurt, just as Thomas, Gordon, James, Percy, Toby (with Henrietta), Emily, and Henry arrived at Knapford Station, Henry says in a worried voice "It looks like the sneeze droplets might affected me." Thomas tells him not to worry because none of the engines are sick, until Percy tells him that a nice cool drink of water would cool engines down, but when Henry arrived at the water tower Henry tells Percy that his germs have entered his funnel, But Percy says to Henry "Henry, don't be silly I'm not sick." Henry replies then "Oh yeah? If this would happen to be a germaphobe, then tell that to the germs!" as he chuffs rapidly home, Henry is brushing his teeth, he must secure the home base, Sir Topham Hatt tells Henry that it's not Sir Topham Plank but Sir Topham Hatt, Then Henry tells "Sir, There everywhere, the Germs, I've got to get rid of them before they cause me confusion and delay." and the germs say that they're gonna get Henry.
Then comes a music video "Go, Go, Thomas!" with an even more upbeat and whimsical beat, with scenes of Henry wearing a mask, a gas mask, and the same mask worn by Germ Jessica, and comes another time card reading "A little while later", the Mail Carriers arrived on Duck, Mavis, Oliver, and Rosie with a package for Henry the number three green engine, it was a glass bubble, and he felt safer here, Thomas asks "Sir, is Henry going to be okay?" and he said "Of course he'll be fine, he's gonna be happier and he'll be a really useful engine!" after Henry hears James, Percy, Toby, Gordon, Emily, and Edward's questions to Sir Topham Hatt offscreen he went to sleep, and just as he went to sleep, he had a dream which is a nightmare where Sir Topham Hatt has turned into a giant germ, including, Gordon, James, Percy, Toby, Edward, Thomas, and Emily, he rolls away shouting "Bubbling Boilers, I can't make this thing stop!" until the germs took him to the Sodor dumpster.
The last time card pops up reading "The next day." Harvey tells the Fat Controller really worried "Sir, he's gone!" Edward replies with "Yeah, Where is Henry?" he tells Thomas to take the Breakdown Crane up to Henry in the Sodor dumpster where Whiff is waiting next to it, Thomas can't get Henry out of the dumpster by himself, he got backup from Belle and Flynn, Henry tells Thomas, Belle, Flynn, and Whiff that they got him and said "The germs have affected me and took me to the Sodor dumpster, How long before they destroy me, Thomas?" Thomas says that germs aren't have bad even though he's a bit green, Flynn replies with "Yeah, If that didn't crossed my mind" and Belle said next to him "Why would germs be so bad, as anybody could take a dumpster bath anyway?" as he takes Henry to Knapford station, where Bill, Ben, Percy, Edward, Gordon, James, Toby, Emily, Oliver, Duck, Toad,, Stanley, Stephen, Connor, Caitlin, Charlie, took Victor to the Steamwoks even though Bill Ben, Stanley, and Stephen don't speak, Victor says "Henry, my friend, All engines need germs to say healthy, right Kevin?" Kevin replies with "Yup, That's right Boss." and Harold shows up and said that the germs are happy, Henry asks "Then If the germs are healthy, does this mean that germs are actually our friends," Harold agrees and tells him that he's covered with little buddies.
in the end Henry look as the germ said "Hello, Henry, will you be our friend, please?" and Henry is happy that Charlie tells him a joke, "What kind of Elephant eats germs? A green eared animal" Henry and his new friends laughed that he wants to haul freight scaring everyone, and the episode ends with the engine roll call as usual, then the end credits showed up and it had the demo version of Go on, Go playing for 1 minute, and showed the copyright date December 9, 2014, which is a Tuesday date and same date as the 2014 Victoria Secret Fashion Show, and finally the HiT Entertaiment logo showed up as usual and the episode ended.
and the Narrator's little brother likes the Lost Episode of Thomas from Season 18, but he wishes his uncle could've seen this he would be so proud, but he's not worried about that after he gave himself a ride back home on Thomas, and the episode's storyline ended.