You can click HERE to Will explain it himself.

You can click HERE to listen to the "Land Of The Lost" Theme Song.

Complete Lyrics :

Marshall, Will and Holly
On a routine expedition
Met the greatest earthquake ever known
High on the rapids It struck their tiny raft (insert screams here)
And plunged them down a thousand feet below
To the Land of the Lost
To the Land of the Lost
To the Land of the Lost