The movie is a direct sequel to The Lego Movie (2014), it will be the fourth movie in the franchise, set to follow the releases of both of the first movie's spin-offs, The Lego Batman Movie and The Lego Ninjago Movie (both released in 2017).
The movie reunites the heroes of Bricksburg in an all new action-packed adventure to save their beloved city. It’s been five years since everything was awesome and the citizens are facing a huge new threat: LEGO DUPLO invaders from outer space, wrecking everything faster than they can rebuild. The battle to defeat them and restore harmony to the LEGO universe will take Emmet, Lucy, Batman and their friends to faraway, unexplored worlds, including a strange galaxy where everything is a musical. It will test their courage, creativity and Master Building skills, and reveal just how special they really are.