If finding out that Lewis Snart used to terrorise his kids didnt set him up as a big enough b*stard already, we soon find out that hes gone one step further this time and implanted an explosive in Lisas noggin. With the promise of exploding his own daughters skull in the same way already illustrated, we get an even greater insight into the twisted mind of Lewis Snart as we also start to piece together just why Captain Cold is working with the father that he apparently hates so much.