K2 Single Item Redirect plugin it's a simple tool that prodivdes redirect from K2 category to Item.
When you are clicking on category and there is only one item, then the plugin redirects to the item instead on category items view, so with this way user will skip one click.
Checks
1) Can Skip Redirect if subcategories exists (Option)
2) Skips Redirect when has 0 items or more than 1 items (Auto - basic function)
3) Can exclude categories