(Casey got sent back in the past by Leo and Mikey but the past turtles doesn't believe him and he came to stop that krang) Leo: I do like how he calls me master. Raph; ugh 😒 Casey: you were the greatest ninja the world ever seen! That's why I came back to stop the krang! Donni: pft time travel isn't possible (laughs) Mikey: ... (While watching)