MICHAEL IRONSIDE GUEST STARS AS LEWIS SNART: When Barry (Grant Gustin) and The Team find out Captain Cold (Guest Star Wentworth Miller) has been kidnapped, they form an uneasy alliance with his sister, Lisa (Guest Star Peyton List). However, Barry feels double crossed when he finds out Snart is working with his father, Lewis Snart (Guest Star Michael Ironside) on a heist. Meanwhile, Joe (Jesse L. Martin) is faced with a difficult decision. John Showalter Directed The Episode Written by Julian Meiojas & Katherine Walczak.