I love ice hockey but just started watching last season. I don't understand it all yet. 
I see, well its a simple game really. Two teams compete to shoot a rubber puck into the opponent's goal to score points!
That does sound easy. How do they get a penalty? I have seen people go to the box but unsure why.
Ice hockey
Ice hockey is a contact team sport played on ice, usually in a rink, in which two teams of skaters use their sticks to shoot a vulcanized rubber puck into their opponent's net to score points. The sport is known to be fast-paced and physical, with teams usually consisting of six players each: one goaltender, and five players who skate up and down the ice trying to take the puck and score a goal against the opposing team.
Ice hockey is most popular in Canada,
season one who didn't like Jimmy and we thought that we hadn't given him a fair shake yet. So heading into season two we really wanted to do this character justice and show what was possible with him. It felt really good to see how upset people got when they thought that they were losing him. We think that he's such an integral part of the show and yeah, I don't think the show works as well without him.” (His character missed just two episodes after MacArthur's "