The sun has fallen out of orbit and will collide into the earth in 5 minutes but if you go into a shelter you're safe...

>fallen out of orbit and will collide into the earth in 5 minutes
Have you ever played Earth 2150? Because thats how it would happen and not in "5 minutes" kek

Halo. I like Halo.

Anyway, if the Sun is engulfing the Earth, there would be no shelter to save us. Make a more feasible scenario, OP.