Cue "Gonna Fly Now", and Lincoln is kind of ready to step up his game to take part on Lynn's marathon and Luan's performance. Starting from Wednesday morning, with a late addition on lunchtime, Lincoln trains with his athletic sister with jogging and other warm-ups. Meanwhile, starting after school, he assists his jokester sister on her birthday party gigs and rehearses with his sister after that.

On their training, Lynn motivates Lincoln to keep his body in shape and stamina, which causes Lincoln to get tired of sorts. While on their performances, Luan convinces Lincoln to stretch out his zone to be an effective performer.

Lynn has Lincoln undergo an Olympics-based training; with this, she demands more crunches. Luan has her brother internalize the science of performance art and slapstick; thus, she demands Three Stooges physics.

Lynn wants Lincoln to be a disciplined marathon runner. But Luan wants him to do a Charlie Chaplin-inspired performance. And this all lead to Lincoln getting tired to serve for them both.

One night, after his practice with Luan, Lincoln heads to the living room, extremely exhausted. Luna and Leni, who are sitting by the couch, notice him.

"Dude, you alright?" Luna asks in concern.

Lincoln is still recovering from overtiredness that he collapses himself to the couch. "Don't think I'm…gonna be okay enough…" he says wearily.

"Okay, what's going on Linc?" Luna opens up her concerns.

"Do you need something, like coffee or mugs?" Leni offers her hospitality.

"Just pillow and blankets. Or a nice warm bed. Or some protein shake and pies…" he spouts woozily, making Leni retrieve those items.

After that, Lincoln grasps Luna closer to confess his concern hastily. "Luna, you gotta help! I'm in the verge of breaking down that I don't know what to do!"

"Okay, okay Lincoln, tell me what's going on?" Luna demands for an explanation.

With a sigh, Lincoln shares, "Well, Lynn has a marathon two Saturdays from now. But she needs a buddy. So I agreed to join her. But on the other hand, Luan has her clowning duties, and she has a talent show performance two Saturdays as well. So I lend my assistance to her. And now with these two errands on my back, I do not know where to start!"

"You do not know where to start, yet you were able to do them?"

"I do not know who to dedicate 100% to."

Just as he shares his sentiments, Lynn bursts in from the door and calls out her brother, "Lincoln, where are you?! I need to talk to you about something!"

Alertly, Lincoln insists to Luna, "Luna, don't tell Lynn where I am! We'll talk this later!" After that, he removes the middle cushion of the sofa and hides in there. "Just hide me!" he insists, making Luna cover back the cushion and place her legs on top of it.

"Lincoln!" Lynn calls him again to the living room, but she only sees Luna whistling. "Hey Luna, have you seen Lincoln?"

"Lincoln? Ahh nope. Not a clue," Luna answers in pretend. But as if contrivance is too much, Leni enters with a pillow, a blanket, a protein shake and a piece of pie.

"Lincoln, got the items you need," Leni utters, causing Luna to signal her to shut her mouth. "Hey, where is Lincoln? I thought he was here a while ago."

Luna mumbles to her blonde sister, "No Leni, shut up."

"Yeah Luna, where is Lincoln?" Lynn interrogates her rocker sister.

Hesitated, Luna tries to find a loophole for an answer, "Uhmmm…he went out."

"If he went out, I could have caught him," Lynn utters, "Oh well, I will just wait for him."

Meanwhile, Lincoln is about to peek from the sofa. However, his hand gets crushed as Lynn lands herself on the sofa.

"So what's you deal with Lincoln anyway?" Luna asks.

"Not much," Lynn explains, "We just have the biggest opportunity of our lives when we registered for the Royal Woods Champs' Marathon."

"So, you made Lincoln join a marathon?"

"Well, he's indeed my reliable sparring partner. I showed this to him. And he agreed to be my buddy. All we have to do is to shape him to become the athlete he needs to be!"

"Aren't you going too far with that goal?"

"Hey, athletes need to go farther more if they want to be the best! That's what I did to perfect ten ball games, ten extreme sports, ten martial arts, boxing, hockey, bobsledding and jai alai."

"You played all of them?"

"Mhmmm, and sooner or later, Lincoln shall become an apprentice of mine to master them all. But baby steps first. He'll need marathons first."

Amazed but terrified at Lynn's expectations for Lincoln, Luna replies, "Right…and you think Lincoln is sports material?"

Lynn defends, "He had football and more running. That's a good start. And I know there's more! That's why I need to tell him that we need to commit to strict training. It's fast approaching. And we need to train harder!"

Luna and Leni just only faze how passionate Lynn is with their participation in the race. "Speaking of which, I need to make the best protein shake ever for Lincoln! Adios!" she says while stomping on the sofa and running off from the living room with tumbles, somersaults and parkouring.

With Lynn gone, Lincoln jumps from the sofa and wails in pain from his fingers being crushed. "AWWWW!"

"Lincoln!" Luna and Leni exclaim in surprise, as Lincoln heeds his fingers by sucking them.

"I need ice in this," Lincoln asserts.

"But we can all see your pain," Leni retorts.

"No Leni, I meant cold ice," he clarifies.

Unexpectedly, Luan overhears the conversation from upstairs. "Lincoln, are you down there? Need to talk to you about something," she spouts.

Lincoln also has the same response from Lynn. With that, he persuades to Luna and Leni, "Tell Luan I'm not here!" and returns to the inside of the sofa.

Luan proceeds downstairs and into the living room. "Hey, where's Lincoln? I thought I heard him down here."

"Lincoln's not here," Leni answers, "He's inside the…"

But before Leni can finish, Luna stuffs her with the protein shake and pie she is holding. Nervously, she replies, "Lincoln just went out for a fresh air."

"Well, tell him if he returns that we need to refresh our routine. Hehehe," Luan says.

But unexpectedly, Lynn reenters the living room, holding a glass of ice water. "Hey, has Lincoln returned yet?"

"I thought you're gonna make your gross protein shake?" Luna utters.

"First of all, it's not gross," Lynn explains, "Second, there are not much ingredients in the fridge. Someone must have finished all the eggs. So, I oughta bring Lincoln to the groceries to buy ingredients."

"Wait, why would Lincoln want to make protein shake with you?" Luan interrogates.

"For training?" the athletic Loud sister answers.

"Training for what?" the comedic Loud sister responds.

"Haven't you heard?" Lynn answers back, "Me and Lincoln are gonna participate in the Royal Woods Champs' Marathon next Saturday. So we need to dedicate more training till the day arrives."

But Luan defends her case, "Well, Lincoln and I have agreed to do our gigs and to perform for the Royal Woods' Performers Cup two Saturdays now. So we might as well commit to rehearsing our act."

"Ughh what?! I thought Lincoln is with me!"

"No! Lincoln is with me!"

"He is my running buddy!"

"No! He is my performing buddy!"

"Prankster!"

"Homewrecker!"

"Nutcase!"

"Nut ball!"

"Buffoon!"

"Juvenile!"

"Bracey face!"

"Face breaker!"

Lynn and Luan confront each other in escalating anger. Thankfully, Luna stops them, "Okay dudes! Will you hold it?!"

"How could I not hold it if she won't let go of Lincoln?" Luan reiterates.

"Ughh, I didn't stole Lincoln," Lynn defends, "You stole Lincoln from me!"

"Yeah right!" Luan replies, "You stole Lincoln from me!"

"Oh yeah?!"

"Yeah!"

As the two growl at each other, Luna tries to pacify them. "Will you stop arguing at each other and discuss this civilly?! War is nothing good for," By then, Luan and Lynn turn their backs at each other and march to their destinations.

"Well, you better not clown around. You don't want to see me really frown," Lynn warns Luan as she walks back to the kitchen and out of the house.

"Ughhh, wordplays?! You might as well run for your life, right now! Hahaha!" Luan cautions Lynn with an ending laugh, but shifts quickly to being angry as she enters her room and slams the door.

With that tirade over, Luna and Leni are stunned from what just happened. There were shouting matches indeed in the Loud house previously, but never from Luan and Lynn, as they are both civil with each other. As the coast gets cleared, Luna pulls the cushion to call back Lincoln, whom she sees inhaling and exhaling faster after hiding. "Lincoln, you okay?"

"Where's the ice?" Lincoln asks as he still needs to recover from his fingers getting crushed.

Leni then speedily gets a bag of ice from the refrigerator and hands it to Lincoln. As he places his fingers on the ice, Lincoln shares his thoughts from the debacle, "This is what I feared about. Two of my sisters fighting, again? What am I supposed to do?"

"Well the deed is done, Linc," Luna utters, "If you want to avoid this, you avoid one commitment and stick with the other."

"But I offered my loyalty to each of them. I even pledged that I would be buddies to both of them."

"Awww, that's sweet and dedicated of you, Lincoln," Leni reacts with her insight, "But seriously, you should have committed to one. Otherwise, you'll end up failing to all. That's what I learned when I tried to be an animal lover and love my fur coat at the same time. I end up being rejected by Greenpeace and the fashion store downtown. And why they call themselves Greenpeas? I never got any green peas."

This leaves Lincoln and Luna both stunned and stumped. "Well, it's your call, not ours," Luna says, which makes Lincoln all the more nervous how to confront this problem.

He then shares his sentiments to the readers, "Why does this always have to happen in a household of ten sisters? Can anyone help me?"