NGTV Guide: Monday, May 21

It’s the first day of summer and you know what that means – time to stay in the house with the air conditioning! Maybe that’s just me here in hot and muggy Kansas without a pool.

Lie To Me – FOX 8/7c
“The Whole Truth” – Lightman is called to testify in the trial of a beautiful widow accused of murdering her much older husband.

The Good Guys – FOX 9/8c
“The Dim Knight” – A string of dog poisonings in the suburbs puts Jack and Dan on the trail of a well-meaning yet oblivious vigilante. The vigilante’s plan to sabotage the meth labs operating throughout his neighborhood has attracted a dangerous amount of attention and a deadly out-of-town visitor.

Persons Unknown – NBC 10/9c
“The Way Through” – After a week of escape attempts end in failure, tension begins to grow within the group. When a helicopter appears above the hostages, they are hopeful that help has arrived, but the craft only hovers long enough to drop a mysterious box. Meanwhile, San Francisco reporter Renbe (Gerald Kyd) puts himself back on the case of Janet’s (Daisy Betts) disappearance, despite warnings to stop his investigation.