When we left off in the midseason finale, Jo (Luddington) finally confessed her big secret(s) to Alex (Justin Chambers): that she's been living under an assumed identity in order to hide from her abusive husband, and doesn't want to put her name in the public record by testifying on Alex's behalf because she's scared her husband will then be able to find her. Partially to protect Jo, Alex decides to turn himself in and accept a two-year prison sentence (though the episode ends before we get to see what, if anything, he actually says to the district attorney).