well, from 150-220 there was nothing but filler, so the only thing important happening is Naruto leaving Konoha with Jiraiya for 3 years for training (in second half of 220). After 220, we got a new series, Naruto: Shippuuden, and started from episode 1 again.
In that time, we've seen two new Akatsuki's, Deidara and Sasori, Gaara is Kazekage, got kidnapped, killed and resurrected, Sakura kills Sasori with the help of Chiyo, an elder from the sand, who later dies resurrecting Gaara. Naruto fought a fake Itachi, and Deidara, Team Gai fought a fake Kisame and copies of themselves, Naruto saves Gaara, goes back to Konoha, everyone has new outfits, we meet two new characters, Yamato and Sai, Naruto, Sakura, Yamato and Sai goes to the Heaven and Earth bridge, Naruto fights Orochimaru and goes Kyuubi 4 tails, they follow Orochimaru and Kabuto to Oro's hideout, and now they search for Sasuke. That's basically all that's happened
