[s1e1] Rise Of The - Turtles, Part 1

: Returning home in shame, the Turtles argue over who is at fault. Splinter realizes he has trained them to fight as individuals and decides they need a leader to unite them. He officially appoints Leonardo as the leader of the team. Characters Introduced Rise of the Turtles, Part 1/Transcript - TMNTPedia

: Michelangelo discovers that the kidnappers are not human, but androids piloted by brain-like creatures—a race later identified as the Kraang . He also finds a canister of the same glowing "ooze" (mutagen) that originally transformed them and Splinter fifteen years prior. [S1E1] Rise of the Turtles, Part 1

: After convincing Splinter to let them go topside, the Turtles are mesmerized by the surface world and discover pizza for the first time. However, their fun is cut short when they witness April O’Neil and her father, Kirby, being kidnapped by mysterious men in black suits. : Returning home in shame, the Turtles argue