RICK LAGINA: My first
thought was, that's strange.
 Yes, it is strange.
NARRATOR: On the Western
side of the island,
Rick, Marty, and
members of the team
have invited area
archaeologist Laird Niven
to help in their
investigation of
a strange square-shaped hatch.
If the hatch can be
identified as man-made
and of ancient origin,
then the brothers
may have found another
important clue to help them
solve the Oak Island mystery.
 It does seem like
rocks have been removed.
 It's been cut in.
LAIRD NIVEN: That's not natural.
And this is pretty
loose filling.
 Mm-hmm.
LAIRD NIVEN: Keeps going
for a bit, you see.
 So you think it
goes off to the side?
 At least for a little bit.
MARTY LAGINA: The thing
we obviously want it to be
is the entrance to a tunnel.
And there was some
evidence of that.
He thought three of
the sides were solid.
But at least on one
side, he thought
it might go off somewhat.
RICK LAGINA: It warrants
further investigation.
So where should we go?
Who should we notify?
How do we do this?
 Well, if I was to investigate
it as an archaeologist,
I'd get a permit,
probably remove
some of these small trees.
 Right.
Is there any prohibition
against if you're just digging
it out with a hand shovel?
I mean, we just still want to
follow the rules, you know.
LAIRD NIVEN: Right.
I couldn't do it
without a permit.
 I think this is a
disclosure deal, then.
We just tell whoever
in the government.
 Yeah.
MARTY LAGINA: Yeah.
We're going to go ahead and
disclose it to authorities.
So we have some
permitting issues
to work our way through
before we dig over there.
NARRATOR: Rick and
Marty's decision
to involve the Canadian
government will cost them time
but will be beneficial to
the process in the long run.
There are many who
believe that Oak Island is
a national treasure
and quite possibly
a sacred archaeological site.
Although two centuries
of treasure hunting
have seen the island dug up,
bulldozed, and even detonated,
the Laginas and
their partners have
been determined to take a more
responsible and scientific
approach.
 All right, I think we've
done what we need to do here.
 Thought we have a
logical way to pursue it.
MARTY LAGINA: Right.
Thank you very much.
 No problem at all.
[MUSIC PLAYING]
