Available on Disney+
S2, E8: Thaddeus and Thor: Relatives of the Flynn's next door neighbors are visiting and bear an uncanny resemblance to Candace, Phineas, and Ferb. De Plane! De Plane!: After watching a tv program about Howard Hughes' Spruce Goose, Phineas and Ferb set out to build an even bigger plane -- out of paper-mache.
Animation · 15 Jun 2009 · 21 min
Starring Allison Janney