Chuck Missler isan ex CIA think tank guy. That has come up with some very un-bibical doctrines. He used to be part of the Calvary Chapel movement, but his teachings on the sons of God in Genesis 6 being ET's that had sex with the daughters of men and how the Bible taught about UFO's. Didn't set well with Chuck Smith, so he move on from there. The last time I seen him he was on the history channel as part of the Ancient Alien theory, other wise know as the "Cult of the Aliens". The basic teaching of these guy once you dig into their beliefs.
That Aliens came to earth in search of gold because the ozone layer in the universe had a whole in it and gold was needed to fix it. When they came down to earth, man was still a neanderthal just this side of being monkeys. So these aliens place some of their DNA in man to make him more intelligent so they could be the drones working the gold mines for them. Once they placed the DNA in man, he became modern and white. It's very racist at it core.
When I first started listening to Chuck Missler he had some good teachings on the Messiah and the prophecy about him. One thing you'll find out fast about Chuck, is once you've heard a few teachings he starts repeating himself. Is he still in Idaho tater country?