Little Sentries is a game that starts off with a narration that sets up the plot of the game play. You will be on the side of the good guys whose main objective will be to protect the base. Waves of enemies will be coming to attack the base and you all should launch attacks in the most effective way to eliminate all the enemies before they cause a lot of destruction or enter the base. More attack and defense options will get unlocked as the game play continues. You have to be determined and stay focused in order to be successful.