Why did the mayflower pilgrims land at plymouth

Lost at sea, they came across cape cod & set up camp not too far from plymouth rock. The 102 travelers aboard the mayflower landed upon the shores of plymouth in 1620.

necessary and proper clause. the congress shall have power to all laws which shall be necessary and proper for carrying into execution the foregoing powers, and all other powers vested by this constitution in the government of the united states, or in any department or officer thereof.