This summarizes Lost
LOST: So there's this Island, and it's special, see. Time travel, polar bears, whispers, smoke monsters...
ME: Awesome bro, show me more!
LOST: Let's ask the Dharma Initiative! Mysterious group of scientists, led by Alvar Hanso, searching for some unfathomable secret, with all their cool, 1970s-era technology. Cool, right?
ME: Yes! But what is the secret they are after?
LOST: You should ask the Others, they know. The Others have been around forever. At first they looked like savages, but -- surprise! They have modern ways and means. New Otherton, Mittelos Biotech... yes, sir, the Others are where it's at. Ben is the leader and he knows everything.
ME: Great... so what does Ben know?
LOST: Huh? Ben? He's actually pretty in the dark. The real big dogs here are Widmore and Eloise! They have all the answers!
ME: Ok. Let's have more Widmore and Eloise, then!
LOST: Sorry, no time for that. We're going back to the '70s, when the Dharma Initiative was still around. Sick, right?
ME: Uh, so the Dharma Initiative, they were...
LOST: Ohhh... just some scientists, i guess. They wanted to harness the electromagnetic energy for research, time travel, that sort of thing. Anyway, they are scientists, based in Ann Arbor. That's about it.
ME: .... so what about Alvar Hanso? He must have some grand design, right?
LOST: Who? Alvar what-now? Nah, look, i've just been messing with you. Let's cut to the chase, time is running out. It's all about Jacob and his brother, Smokey. They are immortal! They play an epic game! There are rules, candidates, loopholes! Everything that has happened so far is because of them! Jacob and Smokey!
ME: Great! Let's learn about them!
LOST: Well... Jacob is just doing what his mother told him to do. He doesn't know why, really. His mother's dead. Smokey wants to leave the Island. That's about it.
ME: That's it?
LOST: Well, there's this light, see, this golden light underground. It's all the goodness in the world. But it turns people bad. It kills you, or makes you live forever. Something. It must be forever guarded but never used. It's inside everyone but can't be touched. Light, etc!
ME: Wtf?
So we spent entire seasons with dharma and others to find out they were completely ****ing pointless? We watched dharma get blown up by an atom bomb, and the others slaughtered in some useless temple. So Jacob bought them to a temple to guard the temple and kill his candidates in the early seasons? HOLY **** BALLS CAPTAIN!