What is the plot?

What is the ending?

Is there a post-credit scene?

Who are the main characters in Sentinel, and what is each one’s role on the outpost?

I can't reliably answer this for a 2025 movie titled Sentinel because the search results provided do not identify a 2025 film with that title. The available results mostly point to other films named Last Sentinel (2023) and Sentinel (2024), so any character list for a 2025 Sentinel would be speculative.

What is the mysterious object, weapon, or device at the center of Sentinel’s story, and who controls it?

The provided results do not contain enough verified information about a 2025 film titled Sentinel to identify a central object or who controls it. The closest related result mentions a doomsday device called Martha in Last Sentinel (2023), but that is a different film and should not be treated as evidence for a 2025 Sentinel.

What causes the tension or conflict between the characters in Sentinel?

The search results do not confirm a 2025 Sentinel, so I cannot state its character conflict with confidence. For the similarly titled Last Sentinel (2023), the tension comes from a stranded four-person crew, an overdue relief mission, and the appearance of a mysterious boat, but that plot cannot be assumed to belong to the 2025 title.

Which character betrays the group, and what motivates that betrayal in Sentinel?

There is not enough verified source material here to identify a betrayal in a 2025 film titled Sentinel. The results only suggest that in Last Sentinel (2023), suspicion and divided loyalties develop among the isolated soldiers, but no 2025-specific character information is available.

How does Sentinel explain the relationship between the protagonist and the enemy, and which characters are directly involved?

The search results do not provide verified 2025-specific plot details or character relationships for a film titled Sentinel. If you meant one of the similarly titled films in the results, I can generate the most popular plot-character questions for that exact movie instead.

Is this family friendly?