The Clone Wars: Umbara Arc Spoilers

TV Guide's website has brief one sentence descriptions up that give away some plot points of the next three TCW Episodes. Don't continue reading of you want to be totally spoiler free.

Episode Detail: The General - Star Wars: The Clone Wars
The clones embark on a deadly mission at the Umbaran airbase with no backup from the Jedi.

Episode Detail: Plan of Dissent - Star Wars: The Clone Wars
The clones disobey orders and plan to take out a supply ship.

Episode Detail: Carnage of Krell - Star Wars: The Clone Wars
Rex stands up for his men, who face execution for disobeying Pong Krell.

Source: TVGuide.com http://www.tvguide.com/tvshows/star-wars-the-clone-wars/294948