Slade has returned to Los Angeles and Summer doesn't know anything about it, until her friend Ethan tells her about it. Later when Matt sees Summer and Slade together, he gets jealous. But Summer tells him that she will tell Slade about them. Then before Summer gets the chance to tell him, Ethan tells Slade about Matt and Summer's relationship. Slade confronts Summer and she tells him the truth.
s04e01 - Race Against Time (Part 1)
s04e02 - Race Against Time (Part 2)
s04e03 - Lover's Cove
s04e04 - Blindside
s04e05 - Sky Rider
s04e06 - Tentacles (Part 1)
s04e07 - Tentacles (Part 2)
s04e08 - Submersion
s04e09 - Ironman Buchannon
s04e10 - Tower of Power
s04e11 - The Child Inside
s04e12 - Second Time Around
s04e13 - The Red Knights
s04e14 - Coronado Del Sol (Part 1)
s04e15 - Coronado Del Sol (Part 2)
s04e16 - Mirror, Mirror
s04e17 - The Falcon Manifesto
s04e18 - Rescue Bay
s04e19 - Western Exposure
s04e20 - The Life You Save
s04e21 - Trading Places
s04e22 - Guys & Dolls
This long-running series follows the adventures of a team of lifeguards on the crowded beaches of Los Angeles County. Veteran lifeguard Mitch Buchannon watches over the younger lifeguards that come and go with each passing season as they keep the beaches safe for vacationers. Frequently he must take action to save them from the raging seas and from the raging tempers that sometimes flare up between the young guards in this stressful job.