This TV show named Fallout is made by Amazon Prime. I do not own it. This is purely a clip from the show itself. Atomic bomb scene in 1×01 of Fallout.

The opening scene of the Fallout (2024) TV series depicts the harrowing start of the Great War on October 23, 2077. Set at a child’s birthday party in the Hollywood Hills, the sequence follows Cooper Howard (played by Walton Goggins) as he explains a grim survival rule to his daughter.

The Thumb Rule: Cooper explains that if a nuclear bomb drops, you should hold out your thumb toward the mushroom cloud. If the cloud is smaller than your thumb, you run; if it is larger, “don’t bother”.

The Attack Begins: The first nuclear explosion hits downtown Los Angeles, followed by multiple other strikes visible across the skyline.
The Escape: As the shockwave approaches, Cooper grabs his daughter and flees on horseback while the party guests panic and the city is engulfed in fire.

The scene is praised for its “slow-burn” tension and visual fidelity, contrasting the bright 1950s-style aesthetic with the sudden, catastrophic end of the world.

For a look at the chilling dialogue and the moment the bombs first strike: