As WWII engulfs Europe,
Nazi saboteurs prepare to strike at America's heartland
from beneath the waters of the Great Lakes. Their weapon - a
U-boat
- has been smuggled piece-by-piece, reassembled, and abandoned in a
secret underground factory
.
Eight decades later, 16-year-old Charlie LeClair discovers the Last U-boat
-deep beneath his backyard on the shores of Lake Erie. He and his friends
explore
the perfectly preserved boat and the
adventure
begins.
Can Charlie and his friends
bring the sub to life
? Can they
solve the mystery
of how it got there? Can he do it
without getting caught
?
The answer depends on whether his
parents
, his
friends
, a budding
romance
, the
US Navy
, an army of
terrorists
, and a pair of
criminal thugs
can stop him.