Dad has colon cancer

We found out this  month that my dad has colon cancer and it has spread to his liver.  They took out part of his colon already but they found out that the cancer has spread to his liver and he is at stage 4 cancer.  He starts chemo the end of this month, what should I expect? Is there a chance for him going into remission?  PLEASE HELP.  Any advice is helpful and prayers are definately needed at this point.  I'm lost.