Donatello: [into phone] Hey, April. Um, not the best time.
April O'Neil: [over phone; filtered] Donnie, I really have to talk to you. Alone. It's important. I need you to meet me.
Splinter: Shizukani! What is the problem here?
Donatello: [still angry] Nothing, Sensei. I'm heading out. April needs me.
Leonardo: [trying to get Donnie's attention] You're needed here now, Donnie. Donnie! Donnie!
Splinter: My sons, you cannot drive each other apart. In times like these, unity is important. Do not forget the most basic lesson: an effective team thinks as one.