is one piece episode 459 filler?

With the execution three hours away, Ace unchained from the wall. He looks down thinking of his childhood with Luffy and walks down the hallway with the guards holding him tight.

He looks up the long stairway and climbs the stairs. In the South Blue, the civilians worry that Whitebeard will reach Marineford before long.

As Whitebeard is widely known throughout the years, an elderly woman reads the newspapers that Marineford has tightened security.