I'm not sure what the rules are about posting links here, but since no ones answered yet I'd suggest checking out Extra History. They did a very well done series on the second punic war.

https://www.youtube.com/watch?v=EbBHk_zLTmY&list=PLhyKYa0YJ_5Aq7g4bil7bnGi0A8gTsawu&index=1