Darkwing Duck season 2 episode 7
Episode title: Tiff of the Titans
Fenton/Gizmoduck heads to St. Canard after Steelbeak. The F.O.W.L. agents soon finds out and frames Darkwing so Gizmoduck will think he's evil. The two fight it out, while Steelbeak tries to steal a new, top-secret weapon.
