THRESHOLD Episode 1 Part 2 "Trees Made Of Glass"

A ship at see comes into contact with a strange light in the sky. The US government immediately sets in motion the Threshold scenario, pulling together the team suggested by Molly Caffrey, crisis management expert. The team which comprises a medical scientist, linguist, mathematician and shadowy action man are yanked out of their lives and whisked off to examine the ship. There they find that all the living creatures have been affected, many showing strange behavioural patterns (as in they create a pattern with their behaviour). The pattern is a fractal and it keeps on occurring.

Some of the crew are missing and there is one survivor. He has been turned into a superman and escapes despite being shot in the chest 4 times. It becomes clear that aliens are rewriting the DNA of their victims, turning us into them. The crisis team are the only ones who can figure out how to catch the rest of the crew before they can infect the rest of the world. In the meantime, they have been personally targeted by the 'infectees'.