I've finally seen Indiana Jones and the Kingdom of the Crystal Skull and I was not disappointed.

A young man named Mutt Williams (Shia Labeouf) seeks up Indiana Jones (Harrison Ford), to tell him that Indy's old friend and colleague Harold Oxley (John Hurt) has disappeared after finding a crystal skull in Peru. Indy and Mutt travels to Peru in hopes of finding Oxley.
In Peru they are followed by Soviet soldiers, led by Irina Spalko (Cate Blanchett), who also took Oxley. They are taken to the Soviet camp. Together, with the Soviets, Indy, Mutt and Oxley has to take back the crystal skull where it first came from. It is said that the one who brings back the skull too its rightful place will gain power and Irina is, of course, tempted...

Karen Allen also appeared in the movie, she reprises her part as Marion Ravenwood. The movie had true Indy-spirit and it really lived up to my expectations.