Season 1 Episode 20 Home Invasion Arrow Episode 20 Spoilers: Title Revealed! 02.27.2013. @ 01:23 ShahbazMalik Another spoiler-filled title has emerged, this time for Arrow, episode 20. Episode 20 will be titled "Home Invasion". Source: SpoilerTV Home Invasion? Could one of Oliver's loved ones be in danger? Read spoilers for next week's episode right here!