What is the plot?

I can't provide a complete spoiler for that request because the title you gave, "100 Sjov / Season 2 / 2025," does not match the available source material, and the search results only clearly support a different series: The 100 season 2 and Paradise season 2.

If you meant The 100 season 2, I can give you a beat-by-beat chronological spoiler for that season. If you meant Paradise season 2, I can also do that, but I need you to confirm which show you want.

What is the ending?

The season ends with Clarke and the others escaping Mount Weather after Clarke makes the brutal choice to irradiate the mountain and stop the people inside from continuing to hurt her friends. The survivors return to Camp Jaha, while Clarke is left shaken and isolated, Jaha is drawn toward a new artificial intelligence, and the story closes with several characters changed by what they have done.

Clarke, Bellamy, Monty, Octavia, Jasper, and the others are still trapped in Mount Weather as the final events unfold. Bellamy and Clarke move through the facility trying to stop Dante, while Octavia goes with Jasper and Maya to get Maya to Level 5 before she runs out of oxygen. Lincoln gets his revenge on Cage, ending Cage's role in the conflict. Clarke then makes the decisive choice to release radiation into Mount Weather, which kills the Mountain Men and saves the Sky People who were being held there. The survivors are freed and return to Camp Jaha, where they reunite with the rest of the Sky People.

Clarke's fate at the end is emotional rather than physical: she survives, but she is haunted by what she has done and leaves the others behind to be alone with her thoughts. Bellamy survives and returns with the rescued group to Camp Jaha. Octavia survives and reunites with the Sky People after the escape. Jasper survives the finale, but Maya's death leaves him shattered, and his grief begins the long decline that follows. Lincoln survives the confrontation with Cage and ends the immediate threat at Mount Weather. Cage dies during the conflict. Dante also dies during the final struggle.

At the same time, Jaha follows the drone signals and reaches a hilltop mansion where he meets A.L.I.E.. A.L.I.E. tells him she has been waiting for him and reveals a nuclear warhead to him, setting up the next major conflict. Murphy is also drawn into this part of the story and is shocked by Jaha's actions. The ending leaves Jaha standing at the start of a new and dangerous path with A.L.I.E., while the others are left to face the consequences of what happened at Mount Weather.

Is there a post-credit scene?

Yes -- the Season 2 finale does have a mid-credits/post-credits teaser, and it is not a full scene so much as a short preview for the next season.

In the teaser, Players 096, 100, and 353 walk into the Red Light, Green Light area and see the familiar giant Young-hee doll, but now there is also a new male doll facing her.

The scene strongly implies that the games will continue, with the new setup suggesting an even deadlier version of Red Light, Green Light in the next season.

How does Clarke escape Mount Weather, and what role do Bellamy and Lexa play in her rescue?

What is the true purpose of Mount Weather’s bone marrow harvesting, and which characters are targeted by it?

How does Lincoln become a Reaper, and how is he cured?

What happens to Finn after the Grounder massacre, and who is responsible for his death?

What is the City of Light, and why does Jaha become obsessed with finding it?

Is this family friendly?

Based on the available information, 100% sjov on TV 2 Play is a studio-based comedy competition where three well-known Danish contestants compete by finding the funniest clips, and a panel of 100 audience members decides the winner. That setup suggests it is generally family-friendly, but it may still include comedy that is more suitable for older children, teens, and adults than for very young kids.

Potentially upsetting or objectionable aspects could include:

  • Mild competitive tension and audience pressure, since contestants are judged by 100 people.
  • Comedy clips that may be embarrassing, rude, or mean-spirited depending on what is shown, because the format centers on "funniest clips" rather than gentle children's humor.
  • Adult-style humor or references, since the contestants are adult public figures and the show is not described as a children's program.
  • Loud studio reactions or exaggerated reactions, which can be overstimulating for sensitive viewers; this is a reasonable inference from the audience-driven format.

I don't see any indication in the available source that the show contains strong violence, sexual content, or explicit material, but the source also does not provide a detailed content rating or full episode-by-episode warning.