Young Justice (2010)

S01E03 Welcome to Happy Harbor

When Speedy decides not to be part of the new roster, Robin, Aqualad, and Kid Flash begin to worry that Young Justice might just be a laughable endeavor. Meanwhile, Miss Martian is anxious about fitting in with the group. Their concerns come to a head when the team, alongside Superboy, faces off against Mister Twister, revealing that their worst fears may indeed be coming true...