The first hour of'Karthikeya 2'cobbles together seemingly disparate ideas. The screenplay is somewhat haphazard too. In Greece,an accomplished archaeologist figures out a solid finidng that dates back to Lord Krishna's times. He is being shadowed by a secretive cabal,whose gangster-like malevolent chief (Adithya Menon's character is typically written) doesn't want humanity to progress. A backstory unfolds in glorious animation,explaining the origin story of a glowing ornament hidden away in India. Somewhere,an Archaka is attacked in a scene set to loud background score (in a film enriched by measured score from the talented Kaala Bhairava,this and a couple of other moments are an exception). Then there is the talk of an impending environmental calamity. But the story essentially belongs to Dr Karthikeya,the destiny's child. Karthikeya,played by Nikhil Siddhartha,is a steadfastly scientific guy with no interest in matters of spirituality and religion....