"Indiana Jones and the Kingdom of the Crystal Skull" TRAILER

Known Plot Thus Far: In 1957, Indiana Jones is thrust back in action, venturing into the jungles of South America in a race against Soviet agents to find the mystical Crystal Skull.

When last we saw Indy, he was riding off into the sunset in 1989's The Last Crusade, set in 1938 near the start of World War II. The new movie, due this spring, is set at the height of the Cold War in 1957, so the character has aged in real time — 19 years.

"He's teaching and having kind of a quiet life," the producer says. Once the archaeologist is thrust back into danger, the signature Indiana Jones red line tracing across the map will take him to New Mexico, Connecticut, Mexico City and the jungles of Peru.