A heavy-duty subject presented in a documentary style with a touch of spy-thriller elements sprinkled on it.
The old protagonist's character was the only one that was designed properly, everything else was just accessories. If the whole movie would've traveled with this old man's character, it might've become one of the decently made ones but the opportunity was spoiled with a useless heroine, and a baseless plot, especially with the main protagonists' characterization design.
There were a few emotional parts tried but nothing worked out
music/songs/BGM wasn't that enjoyable and didn't add much value to the film
the KGF style parallel story-telling kinda screenplay didn't work at all, it felt so artificial and didn't jell well with the content despite making revelations that both father & son have the same behaviors & mannerisms
and we cannot stop the thought of comparing it against Cobra with respect to the multiple getups of the protagonist
but overall it is a good enough one for a one-time watch for sure.