is one piece episode 596 filler?

Luffy declares that he will capture Caesar. Law says he will deal with Monet while Chopper tries to find an antidote.

Luffy and his group try to find the entrance to the lab. Tashigi and Smoker attack Luffy, with Smoker gaining an advantage until Luffy uses Gear Second and tells Smoker to fight him later when he is at full strength.

Back in the lab, the children start to wake up until Usopp puts them to sleep again. They then see pieces of Smiley falling onto the stolen warship.

Franky, not being able to find an entrance, uses his Radical Beam to make an opening.