Disney XD has released episode synopses for the three episodes coming in September:

DAYTRIP OF DOOM  |  Episode 103  |  September 23

The nephews take Webby to Funso’s Fun Zone and have a dangerous run-in with the Beagle Boys.
*Margo Martindale (“The Americans”) recurs as Ma Beagle.

THE GREAT DIME CHASE  |  Episode 105  |  September 23

Louie accidentally spends Scrooge’s Number One Dime and turns to mad inventor Gyro Gearloose for help to get it back, while Dewey and Webby become entangled in a conspiracy.

THE BEAGLE BIRTHDAY MASSACRE  |  Episode 106  |  September 30

After crashing Ma Beagle’s birthday party, Webby and new mysterious friend Lena must fight their way through Beagle Boy turf to get back home.