Supergirl: “Truth, Justice and the American Way” Preview Clips Craig Byrne 11 years ago "Truth, Justice and the American Way" -- Cat hires a second assistant, Siobhan Smythe, who immediately tries to one-up Kara, on SUPERGIRL, Monday, Feb. 22 (8:00-9:00 PM, ET/PT) on the CBS Television Network. Pictured: Jenna Dewan-Tatum Photo: Darren Michaels/Warner Bros. Entertainment Inc. é 2016 WBEI. All rights reserved. CBS has released three preview clips for Monday’s new episode of Supergirl, which (among other things) brings Chasing Life’s Italia Ricci into the mix as Siobhan! Lucy Lane (Jenna Dewan-Tatum) is back in the mix, too. You can see the new clips below. Official photos for “Truth, Justice and the American Way” can be found here.