Smith who plays as Agent J has to travel back in time to save the world from space scum. A hideous alien named Boris the Animal escapes from a prison. The alien escaped and travelled back to 1969 to kill K before his arrest. So, Agent J follows him into 1969 to save K.
The climax, where J and K installs a security gadget on Apollo 11 was shot in a very nice way.
MIB 3 is a must-watch movie due to sci-fi scenes along with good humor to keep audience engaged. Overall Rating: 4 stars out of 5.