In episode 19 of —titled "A Formidable New Enemy! The Emperor of the Cosmos, Frieza" —the most interesting development is the formal introduction of the series' most iconic villain, Frieza , and the beginning of the Namek Saga . Key Plot Points & Highlights

: Dragon Ball Z Kai episode 19 is significant because it skips the "Fake Namek" filler arc that occurred in the original Dragon Ball Z , moving the story directly to the actual conflict on Namek .

: Following his defeat on Earth, Vegeta heals in a rejuvenation tank on Planet 79 . Upon waking, he learns of Frieza's quest and immediately sets off for Namek to intercept him.