A look at... Iron Hand from Cracker (Part one of Two)

It's time for a little bit of adventure with the Iron Hand from Cracker.  Art by Paddy Brennan.  This will be a two part post.  Part one appeared 23-26/2/2015.

Here are the stats for this strip.

Comic Title: Iron Hand

Comic: Cracker

First Appearance: No. 1 (18/1/75)

Final Appearance: No. 87 (11/9/76)

Continued in the Beezer: first appearance: 16/9/76 (No. 1079)

Final Appearance: No. 1206 (24/2/79)

Here is how Iron Hand was introduced in the story I call, the Tunneling Submarine, first appearing in No. 1 of Cracker.

Now, here is the second installment, from No. 2m dated 25/1/1975

On to Part Three, in No. 3, dated 4/3/1975.

Here now is part four of this story, from No. 4, dated 11/3/1975.

How is Iron Hand going to get out of this one?/  Unlike the original postings where you had to wait 24 hours, you will see the conclusion of this story in thirty minutes.