One possible plot could be that the failsafe is accidentally triggered. The Young Justice team then has to figure out how to stop it from causing more harm while also dealing with the immediate threats it creates.
A plot could center around the discovery of a flaw in the failsafe. The team in Young Justice discovers that the failsafe, which was supposed to protect them, actually has a loophole that could be exploited by an enemy. They then embark on a journey to fix the failsafe while also keeping it a secret from those who might misuse the knowledge.
In a 'young justice failsafe fanfiction', the author could take creative liberties. For example, they could explore the emotional turmoil of the characters. Say, if a character has to sacrifice themselves as part of the failsafe, how would the others react? It could also show the rebuilding process after the failsafe event, like how the team dynamics change.
Maybe a failsafe in a Young Justice fanfic could involve a character being put in a false reality as a safety measure. And the story could revolve around how that character realizes they are in a false world and tries to break free while the rest of the team is also trying to figure out what's wrong with their comrade.
Well, in a Young Justice fanfic, if the failsafe is related to a character's powers, say a character's powers are going out of control and the failsafe is supposed to stop them but might also harm the character. This situation is full of tension. The team has to decide whether to let the failsafe activate and risk losing their friend or try to find another solution, and this kind of dilemma adds a lot of tension.
If Naruto joins Young Justice in fanfiction, he might introduce the concept of chakra to the team. This could open up new ways for them to develop their powers or enhance their existing abilities. He could also form interesting relationships with the characters. For example, his friendship with Robin could be based on their shared leadership qualities and intelligence. And his combat skills would make him a valuable asset in taking on powerful villains.
They could be on a quest to find a missing teammate. Conner's physical powers and Wendy's intelligence would be crucial. They might search through different dimensions or hidden locations. Along the way, they face various enemies and obstacles. Their relationship would grow as they rely on each other to survive and complete their mission.
Well, the plot could involve Loki causing chaos in the Young Justice universe. Maybe he tries to manipulate the young heroes for his own gain, like getting access to some powerful artifact they are protecting. He could also form unexpected alliances with some of the anti - hero characters in the Young Justice world.
They could be on a training exercise together that turns into a real threat situation. For example, they are in a simulated battle scenario but then an actual group of villains attacks the training ground. Nightwing and Artemis have to quickly shift from training mode to combat mode. Nightwing uses his acrobatic skills and martial arts training, and Artemis uses her bow and arrows. They fight side by side and protect each other throughout the chaos.
One possible plot could be Nightwing joining Young Justice as a mentor. He'd bring his years of experience from being Robin and working with Batman. He could train the young heroes in new combat techniques and also teach them about stealth and detective work.
Maybe the fanfiction could center around Nightwing trying to hide his scars from the team at first. He's afraid that they'll see him as weak or damaged. But as the story progresses, he realizes that his scars are a part of him and that his team will accept him no matter what. Along the way, he has to face an enemy who specifically targets his scars in combat, making him confront his fears head - on.
One possible plot could be that a common enemy, like a powerful interdimensional villain, forces the Young Justice team and the Avengers to team up. They start off distrustful of each other, with the Avengers seeing the Young Justice members as inexperienced kids and the Young Justice team thinking the Avengers are too rigid. But as they face the villain's various attacks, they gradually learn to work together. For example, Superboy could team up with the Hulk in brute - force battles, while Robin and Iron Man use their intelligence to figure out the villain's weaknesses.